List of Free and Paid Services for Developers - Tan Phat Digital

In the world of software development, developers and open source authors can take advantage of many free services to support their work, but when it comes to scaling, paid tiers from Tan Phat Digital or large providers will help optimize. Below is the full list, expanding on the original content with additional paid services with free or low-cost tiers.

Major Cloud Providers with Forever Free Limits

• Google Cloud Platform

  • App Engine - 28 hours frontend instance per day, 9 backend instance hours per day

  • Cloud Firestore - 1GB storage, 50,000 reads, 20,000 writes, 20,000 deletes per day

  • Compute Engine - 1 non-preemptible e2-micro, 30GB HDD, 5GB snapshot storage (limited to some regions), 1GB network egress from North America to all destinations regions (excluding China and Australia) per month

  • Cloud Storage - 5GB, 1GB network egress

  • Cloud Shell - Main web/IDE based Linux shell with 5GB persistent storage. Limit 60 hours per week

  • Cloud Pub/Sub - 10GB messages per month

  • Cloud Functions - 2 million invocations per month (including background and HTTP)

  • Cloud Run - 2 million requests per month, 360,000 GB-sec memory, 180,000 vCPU-sec compute time, 1 GB network egress from North US per month

  • Google Kubernetes Engine - No cluster management fees for a zonal cluster. Each user node is charged at standard Compute Engine pricing

  • BigQuery - 1 TB queries per month, 10 GB storage per month

  • Cloud Build - 120 build minutes per day

  • Cloud Source Repositories - Up to 5 users, 50 GB storage, 50 GB egress

  • Google Colab - Free Jupyter Notebooks development environment.

  • Firebase Studio - Google Firebase Studio (formerly Project IDX). VSCode online runs on Google Cloud.

  • Full detailed list - https://cloud.google.com/free

• Amazon Web Services

  • CloudFront - 1TB egress per month and 2M invocation functions per month

  • CloudWatch - 10 custom metrics and 10 alarms

  • CodeBuild - 100 minutes build time per month

  • CodeCommit - 5 active users, 50GB storage, and 10,000 requests per month

  • CodePipeline - 1 active pipeline per month

  • DynamoDB - 25GB NoSQL DB

  • EC2 - 750 hours per month of t2.micro or t3.micro (12 months). 100GB egress per month

  • EBS - 30GB per month of General Purpose (SSD) or Magnetic (12 months)

  • Elastic Load Balancing - 750 hours per month (12 months)

  • RDS - 750 hours per month of db.t2.micro, db.t3.micro, or db.t4g.micro, 20GB General Purpose (SSD) storage, 20GB backups storage (12 months)

  • S3 - 5GB Standard object storage, 20K Get requests and 2K Put requests (12 months)

  • Glacier - 10GB long-term object storage

  • Lambda - 1 million requests per month

  • SNS - 1 million publications per month

  • SES - 3,000 messages per month (12 months)

  • SQS - 1 million message queue requests

  • Full list of details - https://aws.amazon.com/free/

• Microsoft Azure

  • Virtual Machines - 1 B1S Linux VM, 1 B1S Windows VM (12 months)

  • App Service - 10 web applications, mobile, or API (60 CPU minutes/day)

  • Functions - 1 million requests per month

  • DevTest Labs - Enables fast, easy, and lean dev-test environments

  • Active Directory - 500,000 objects

  • Active Directory B2C - 50,000 monthly hosting users

  • Azure DevOps - 5 active users, unlimited private Git repos

  • Azure Pipelines — 10 free parallel jobs with unlimited minutes for open source for Linux, macOS, and Windows

  • Microsoft IoT Hub - 8,000 messages per day

  • Load Balancer - 1 free public load-balanced IP (VIP)

  • Notification Hubs - 1 million pushes notifications

  • Bandwidth - 15GB Inbound (12 months) & 5GB egress per month

  • Cosmos DB - 25GB storage and 1000 RU throughput provisioned

  • Static Web Apps — Build, deploy and host static apps and serverless functions with free SSL, Authentication/Authorization and custom domains

  • Storage - 5GB LRS File or Blob storage (12 months)

  • Cognitive Services - AI/ML APIs (Computer Vision, Translator, Face detection, Bots, etc) with free tier including limited transactions

  • Cognitive Search - AI-based search and indexing service, free for 10,000 documents

  • Azure Kubernetes Service - Free, managed Kubernetes service for cluster management

  • Event Grid - 100K ops/month

  • Full detailed list - https://azure.microsoft.com/free/

• Oracle Cloud

  • Compute

    • 2 AMD-based Compute VMs with 1/8 OCPU and 1 GB memory each

    • 4 Arm-based Ampere A1 cores and 24 GB memory for use as one VM or up to 4 VMs

    • Instance will be revoked when considered idle

  • Block Volume - 2 volumes, total 200 GB (used for compute)

  • Object Storage - 10 GB

  • Load balancer - 1 instance with 10 Mbps

  • Databases - 2 DBs, each 20 GB

  • Monitoring - 500 million ingestion data points, 1 billion retrieval datapoints

  • Bandwidth - 10 TB egress per month, speed 50 Mbps limit on x64-based VM, 500 Mbps * number of cores on ARM-based VM

  • Public IP - 2 IPv4 for VM, 1 IPv4 for load balancer

  • Notifications - 1 million delivery options per month, 1000 emails sent per month

  • Full list of details - https://www.oracle.com/cloud/free/

• IBM Cloud

  • Cloudant database - 1 GB storage data

  • Db2 database - 100MB data storage

  • API Connect - 50,000 API calls per month

  • Availability Monitoring - 3 million data points per month

  • Log Analysis - 500MB daily log

  • Full detailed list - https://www.ibm.com/cloud/free/

• Cloudflare

  • Application Services - Free DNS for unlimited domains, DDoS Protection, CDN with free SSL, Firewall rules and page rules, WAF, Bot Mitigation, Free Unmetered Rate Limiting - 1 rule per domain, Analytics, Email forwarding

  • Zero Trust & SASE - Up to 50 Users, 24 hours logging activity, 3 network locations

  • Cloudflare Tunnel - You can expose HTTP port running locally via tunnel to random subdomain on trycloudflare.com using Quick Tunnels, no account required. Other features (TCP tunnel, Load balancing, VPN) in Zero Trust Free Plan.

  • Workers - Deploy serverless code for free on Cloudflare's global network—100k daily requests.

  • Workers KV - 100k read requests per day, 1000 write requests per day, 1000 delete requests per day, 1000 request lists per day, 1 GB stored data

  • R2 - 10 GB per month, 1 million Class A operations per month, 10 million Class B operations per month

  • D1 - 5 million rows read per day, 100k rows written per day, 1 GB storage

  • Pages - Develop and deploy web applications on Cloudflare's fast, secure global network. 500 monthly builds, 100 custom domains, Integrated SSL, unlimited accessible seats, unlimited preview deployments, and full-stack capabilities via Cloudflare Workers integration.

  • Queues - 1 million operations per month

  • TURN – 1TB free (outgoing) traffic per month.

• Zoho — Started as an email provider But now they offer service suites, some with free plans. List of services with free plans:

  • Email Free for 5 users. 5GB/user & 25MB attachment limit, one domain.

  • Zoho Assist — Zoho Assist's forever free plan includes one concurrent remote support license and Access to 5 unattended computer licenses for unlimited duration available for both professional and personnel use.

  • Sprints Free for 5 users,5 Projects & 500MB storage.

  • Docs — Free for 5 users with 1 GB upload limit & 5GB storage. Zoho Office Suite (Writer, Sheets & Show) included.

  • Projects — Free for 3 users, 2 projects & 10 MB attachment limit. The same plan applies to Bugtracker.

  • Connect — Free Team Collaboration for 25 users with 3 groups, 3 custom apps, 3 Boards, 3 Manuals, 10 Integrations with channels, events & forums.

  • Meeting — Meetings with up to 3 meeting participants & 10 Webinars initiated.

  • Vault — Free Password Management for Individuals.

  • Showtime — Yet another Meeting software for training for remote session upto 5 immediately.

  • Notebook — A free alternative to Evernote.

  • Wiki — Free for 3 users with 50 MB storage, unlimited pages, zip backups, RSS & Atom feed, access controls & customizable CSS.

  • Subscriptions — Free Recurring Billing management for 20 customers/subscriptions & 1 user with all payment hosting by Zoho. Last 40 subscription metrics stored

  • Checkout — Product Billing management with 3 pages & upto 50 payments.

  • Desk — Customer Support management with 3 agents, private knowledge base, email tickets. Integrates with Assist for 1 remote technician & 5 unattended computers.

  • Cliq — Team chat software with 100 GB storage storage, unlimited users, 100 users per channel & SSO.

  • Campaigns - Email Marketing

  • Forms - Form Creator

  • Sign - Paperless Signatures

  • Surveys - Online Surveys

  • Bookings - Appointment Scheduling

Cloud Management Solutions

• Brainboard - Collaborative solution for building and managing cloud infrastructure visually from end-to-end.

• Cloud 66 - Free for personal projects (includes one server deployment, a static site), Cloud 66 provides everything you need to build, deploy and grow applications on any cloud without worrying about "server stuff".

• deployment.io - Deployment.io helps developers automate deployments on AWS. Free tier for one developer (single user), deploy unlimited static sites, web services and environments. We offer 10 free job executions per month with previews and auto-deploys included in the free tier.

• Pulumi — Modern infrastructure as code platform that enables the use of familiar programming languages and tools to build, deploy and manage infrastructure cloud.

• scalr.com - Scalr is a Terraform Automation and Collaboration (TACO) product used for better collaboration and automation on infrastructure and configurations managed by Terraform. Full support for Terraform CLI, OPA integration, and hierarchical configuration model. There is no SSO tax. All features included. Use up to 50 runs/month for free.

• Terraform Cloud - Free for individuals and small teams, supports 500 runs/month, state management and collaboration.

Analysis, Events and Statistics

• amplitude.com — 1 million monthly events, up to 2 apps

• AppFit - AppFit is an analytics tool and comprehensive product management for seamless cross-platform management of analytics and product updates. Free plan includes 10,000 events per month, product journal and weekly insights.

• Aptabase — Open Source, Privacy-Friendly and Simple Analytics for Mobile and Desktop Apps. SDKs for Swift, Kotlin, React Native, Flutter, Electron and more. Free for up to 20,000 events per month.

• Avo — Simplified analytics release workflow. Single-source-of-truth tracking plan, type-safe analytics tracking library, in-app debuggers, and data observability to catch all data issues before release. Free for 2 workspace members and 1 hour data observability lookback.

• Beampipe.io - Beampipe is simple, privacy-focussed web analytics. Free for up to 5 domains & 10k monthly page views.

• Census — Reverse ETL & Operational Analytics Platform. Sync 10 fields from your data warehouse to 60+ SaaS like Salesforce, Zendesk, or Amplitude.

• Clicky — Website Analytics Platform. Free Plan for 1 website with 3000 views analytics.

• counter.dev — Web analytics made simple and therefore privacy friendly. Free or pay what you want by donation.

• DocBeacon - Secure document sharing with document tracking and engagement Analytics. The free plan supports up to 20 PDF documents (10 MB max), 10 contacts, and 2 shares per document with basic analytics for views downloads, time and engagement.

• Dwh.dev - Data Cloud Observability Solution (Snowflake). Free for personal use.

• Expensify — Expense reporting, free personal reporting approval workflow

• getinsights.io - Privacy-focused, cookie-free analytics, free for up to 3k events/month.

• GoatCounter — GoatCounter is an open-source web analytics platform available as hosted service (free for non-commercial use) or self-hosted app. It aims to provide easy-to-use and meaningful privacy-friendly web analytics as an alternative to Google Analytics or Matomo. The tier is free for non-commercial use and includes unlimited sites, 6 months of data retention, and 100k pageviews/month.

• Google Analytics — Google Analytics

• heap.io — Automatically captures every user action in iOS or web apps. Free for up to 10K monthly sessions.

• Hightouch - Hightouch is a Reverse ETL platform that helps you sync customer data from data warehouse to CRM, marketing, and support tools. The free tier allows you 1 destination to sync data.

• Hotjar — Website Analytics and Reports . Free plan allows 2000 pageviews/day. 100 snapshots/day (max capacity: 300). 3 snapshot heatmaps can be stored for 365 days. Unlimited Team Members. Also in App and standalone surveys, feedback widgets with screenshots. The free tier allows creating 3 surveys & 3 feedback widgets and collecting 20 responses per month.

• LogSpot - Full unified web and product analytics platform, including embeddable analytics widgets and automated robots (slack, telegram, and webhooks). The free plan includes 10,000 events per month.

• MetricsWave — Privacy-friendly Google Analytics alternative for developers. The free plan allows 1M pageviews per month without a credit card.

• Mixpanel — 100,000 monthly tracked users, unlimited data history and seats, US or EU data residency

• Moesif — Analytics API for REST and GraphQL. (Free up to 500,000 API calls/mo)

• PostHog - Free Full Product Analytics suite for up to 1m tracked events per month. Also provides unlimited in-App Surveys with 250/month responses.

• Repohistory - Beautiful dashboard for tracking GitHub repo traffic history longer than 14 days. Free plan allows users to monitor traffic for single repository.

• Row Zero - Blazingly fast, connected spreadsheet. Connect directly to data databases, S3, and APIs. Import, analyze, graph, and share millions of rows instantly. 3 free (forever) workbooks.

• Rybbit - Open-source and cookieless alternative to Google Analytics that is 10x more intuitive. Free plans have 3,000 monthly events.

• Seline - Seline is simple & private website and product analytics. Cookieless, lightweight, independent. The free plan includes 3,000 events per month and provides access to all our features, like dashboard, user journeys, funnels, and more.

• StatCounter — Website Viewer Analytics. Free plan for analytics of 500 most recent visitors.

• Statsig - All-in-one platform spanning across analytics, feature flagging, and A/B testing. Free for up to 1m metered events per month.

• TraceLog - AI Analytics for E-commerce. Ask questions in natural language about your analytics, get actionable recommendations and grow your revenue with AI-powered insights. Free for up to 10k events per month.

• Trackingplan - Automatically detect digital analytics, marketing data and pixels issues, maintain up-to-date tracking plans, and foster seamless collaboration. Deploy it to the production environment with real traffic or add analytics coverage to regression tests without writing code.

• TrackWith Dicloud - Free lightweight privacy-focused alternative to Google Analytics. Unlimited pageviews, unlimited visitors, unlimited page heatmaps & goal tracking. Free for up to 3 domains and 600 session replays per domain.

• Umami - Simple, fast, privacy-focused, open-source alternative to Google Analytics.

• usabilityhub.com — Test designs and mockups on real people and track visitors. Free for one user, unlimited tests

• Userbird - Google Analytics alternative with heatmaps, session recordings and revenue tracking.

• New addition: Plausible - Privacy-focused web analytics, free for open source projects or 10k pageviews/month.

• Matomo - Open-source analytics, self-hosted for free.

APIs, Data and ML

• Abstract API — API suite for many use cases including IP geolocation, gender detection or email validation.

• Apify — Web scraping and automation platform to create API for any website and extract data. Ready-made scrapers, integrated proxies, and custom solutions. Free plan with $5 platform credits included each month.

• APITemplate.io - Auto-generate images and PDF documents with simple API or automation tools like Zapier & Airtable. No CSS/HTML required. Free plan with 50 images/month and 3 templates.

• APIVerve - Get instant access to over 120+ free APIs, built with quality, consistency, and reliability in mind. Free plan covers up to 50 API Tokens per month. (Possibly downgraded, 2025-06-25)

• Arize AI - Machine learning observability for model monitoring and root-causing issues like data quality and performance drift. Free for up to 2 models.

• Beeceptor - No-code, cloud-based platform for mocking and debugging multi-protocol APIs (REST, SOAP, gRPC & GraphQL), providing instant servers with rules-based logic, CRUD & stateful mocking, proxying, and CORS management for faster integration and testing. Free plan includes 50 requests per day and provides public dashboard/endpoint where anyone with dashboard URL can view submitted requests and responses.

• BigDataCloud - Provides fast, accurate, and free (Unlimited or up to 10K-50K/month) APIs for modern web like IP Geolocation, Reverse Geocoding, Networking Insights, Email and Phone Validation, Client Info and more.

• Browse AI — Extracting and monitoring data on the web. 1k credits per month for free, equals 1k concurrent requests.

• BrowserCat - Headless browser API for automation, scraping, AI agent web access, image/pdf generation, and more. Free plan with 1k requests per month.

• Calendarific - Enterprise-grade Public holiday API service for over 200 countries. Free plan includes 500 calls per month.

• Canopy - GraphQL API for Amazon.com product, search, and category data. Free plan includes 100 calls per month.

• CarAPI.dev — Comprehensive automotive data API with VIN decoding, stolen vehicle checks, vehicle valuation, inspection data, and more. Free tier includes 100 requests/month across all 9 endpoints.

• Cloudmersive — Utility API platform with full access to expansive API Library including Document Conversion, Virus Scanning, and more with 600 calls/month, North America AZ only, 2.5MB maximum file size.

• Colaboratory — Free web-based Python notebook environment with Nvidia Tesla K80 GPU.

• CometML - The MLOps platform for experiment tracking, model production management, model registry, and complete data lineage, covering your workflow from training to production. Free for individuals and academics.

• Commerce Layer - Composable commerce API that can build, place, and manage orders from any front end. Plan developer allows 100 orders per month and up to 1,000 SKUs for free.

• Composio - Integration platform for AI Agents and LLMs. Integrate over 200+ tools across the agentic internet.

• Conversion Tools - Online File Converter for documents, images, video, audio, and eBooks. REST API available. Libraries for Node.js, PHP, Python. Support files up to 50 GB (for paid plans). Free tier limited by file size (20MB) and number of conversions (30/Day, 300/Month).

• Country-State-City Microservice API - API and Microservice to provide wide range of information including countries, regions, provinces, cities, postal codes, and much more. The free tier includes up to 100 requests per day.

• Coupler - Data integration tool that syncs between apps. It can create live dashboards and reports, transform and manipulate values, and collect and back up insights. The free plan limits one user, data connection, data source, and data destination. Also requires manual data refresh.

• CraftMyPDF - Auto-Generate PDF documents from reusable templates with drop-and-drop editor and simple API. Free plan with 100 PDFs/month and 3 templates.

• CurlHub — Proxy service for inspecting and debugging API calls. Free plan includes 10,000 requests per month.

• CurrencyScoop - Realtime currency data API for fintech apps. Free plan includes 5,000 calls per month.

• CustomJS - HTML to PDF or PDF to PNG/Text & PDF merging/extraction/merging APIs. Free tier has 600 calls a month.

• Data Fetcher - Connect Airtable to any application or API with no code. Postman-like interface for running API requests in Airtable. Pre-built integrations with dozens of apps. Free plan includes 100 runs per month.

• Data Miner - Browser extension (Google Chrome, MS Edge) for data extraction from CSV or Excel web pages. Free plan gives you 500 pages/month.

• Dataimporter.io - Tool for connecting, cleaning, and importing data into Salesforce. Free plan includes up to 20,000 records per month.

• DB Designer — Cloud-based Database schema design and modeling tool with free plan starter 2 Database models and 10 tables per model.

• DB-IP - Free IP geolocation API with 1k requests per IP per day.lite database under the CC-BY 4.0 License free too.

• DeepAR — Augmented reality face filters for any platform with one SDK. Free plan provides up to 10 monthly active users (MAU) and tracks up to 4 faces

• Deepnote - A new data science notebook. Jupyter is compatible with real-time collaboration and runs in the cloud. The free tier includes unlimited personal projects, unlimited basic machines with 5GB RAM and 2vCPU, and teams with up to 3 editors.

• DiffJSON - Online tool for comparing differences between two JSON data structures, helping you quickly locate the differences in JSON data.

• Disease.sh — Free API providing accurate data for building the Covid-19 related useful Apps.

• Doczilla — SaaS API empowers the generation of screenshots or PDFs directly from HTML/CSS/JS code. Free plan allows 250 documents month.

• Doppio — Managed API to generate and privately store PDFs and Screenshots using top rendering technology. Free plan allows 400 PDFs and Screenshots per month.

• drawDB — Free and open-source online database diagram editor with no signup required.

• DynamicDocs - Generate PDF documents with JSON to PDF API based on LaTeX templates. The free plan allows 50 API calls per month and access to library of templates.

• Earnings Feed - Real-time SEC filings, insider trades, and institutional holdings API. The free tier includes 15 requests per minute.

• Export SDK - PDF generator API with drag-and-drop template editor that provides SDK and no-code integrations. The free plan includes 250 monthly pages, unlimited users, and 3 templates.

• ExtendsClass - Free web-based HTTP client to send HTTP requests.

• Financial Data - Stock market and financial data API. Free plan allows 300 requests per day.

• FormatJSONOnline.com - A free, browser-based tool to format, validate, compare and minify JSON data instantly.

• FraudLabs Pro — Screen an order transaction for credit card payment fraud. This REST API will detect all possible fraud traits based on the input parameters of an order. The Free Micro plan has 500 transactions per month.

• FreeIPAPI - Free, Fast and Reliable IP Geolocation API for commercial and non-commercial users available in JSON

• Geolocated.io — IP Geolocation API with multi-continent servers, free offering plan with 2,000 requests per day.

• Hex - a collaborative data platform for notebooks, data apps, and knowledge libraries. Community tier is free with up to 5 projects.

• Hook0 - Hook0 is an open-source Webhooks-as-a-service (WaaS) that makes it easy for online products to provide webhooks. Dispatch up to 100 events/day with 7 days of history retention for free.

• Hoppscotch - A free, fast, and beautiful API request builder.

• huggingface.co - Build, train, and deploy NLP models for Pytorch, TensorFlow, and JAX. Free up to 30k input characters/mo.

• Insomnia - Open-source API client for designing and testing APIs, it supports REST and GraphQL

• Invantive Cloud — Access over 70 (cloud)platforms like Exact Online, Twinfield, ActiveCampaign or Visma using Invantive SQL or OData4 (typically Power BI or Power Query). Includes data replication and exchange. Free plan for developers and implementation consultants. Free for specific platforms with limitations on data volumes.

• IP Geolocation API by ipwho.org - 2,000 free requests per day. Fast, enterprise grade API at non-enterprise prices. Trusted by developers, corporate, government and education clients. Servers in 12+ regions.

• IP Geolocation API — IP Geolocation API from Abstract - Allows 1,000 free requests.

• IP Geolocation — IP Geolocation API - Forever free plan for developers with 1,000 requests per day limit.

• ip-api — IP Geolocation API, Free for non-commercial use, no API key required, limited to 45 req/minute from same IP address for free plan.

• IP.City — 100 Free IP geolocation requests per day

• IP2Location.io — Freemium, fast, and reliable IP geolocation API. Get data like city, coordinates, ISP, ASN, AS data and more. Free plan includes 50k credits per month. IP2Location.io also offers 500 free WHOIS and hosted domain lookups per month. See domain registration details and find domains hosted on specific IP. Upgrade to paid plan for more features.

• ipaddress.sh — Simple service to get public IP address in different formats.

• ipapi.is - A reliable IP Address API from Developers for Developers with best Hosting Detection capabilities that exist. Free plan offers 1000 lookups without signup.

• ipapi - IP Address Location API by Kloudend, Inc - A reliable geolocation API built on AWS, trusted by Fortune 500. Free tier offers 30k lookups/month (1k/day) without signup.

• ipbase.com - IP Geolocation API - Forever free plan that spans 150 monthly requests.

  and free (up to 50k/month) IP address data API. Offers APIs with details on geolocation, companies, carriers, IP ranges, domains, abuse contacts, and more. All paid APIs can be trialed for free.

• IPLocate — IP Geolocation API, free up to 1,000 requests/day. Includes proxy/VPN/hosting detection, ASN data, IP to Company, and more. IPLocate also offers free downloadable IP to Country and IP to ASN databases in CSV or GeoIP-compatible MMDB formats.

• IPTrace — An embarrassingly simple API that provides your business with reliable and helpful IP geolocation data with 50,000 free lookups per month.

• JSON IP — Returns the Public IP address of the client it is requested from. No registration required for free tier. Using CORS, data can be requested using client-side JS directly from browser. Useful for services monitoring changes in client and server IPs. Unlimited Requests.

• JSON to Table - Convert JSON into an interactive table for quick viewing, editing, and online sharing.

• JSONGrid - Free tool to Visualize, Edit, Filter complex JSON data into beautiful tabular Grid. Save and Share JSON data over link.

• JSONing — Create fake REST API from JSON object, and customize HTTP status codes, headers, and response bodies.

• JSONSwiss - JSONSwiss is a powerful online JSON viewer, editor, and validator. Format, visualize, search, and manipulate JSON data with AI-powered repair, tree view, table view, code generation in 12+ programming languages, convert json to csv, xml, yaml, properties and more.

• KillBait API - KillBait API allows users to submit URLs for content evaluation, detecting potential clickbait and categorizing articles. The API designed for moderate publishing frequency, with limits of 1 submission per hour and 10 per day. Media partners can request higher limits.

• Kreya — Free gRPC GUI client to call and test gRPC APIs. Can import gRPC APIs via server reflection.

• LoginLlama - A login security API to detect fraudulent and suspicious logins and notify your customers. Free for 1,000 logins per month.

• Market Data API - Provides real-time and historical financial data for stocks, options, mutual funds, and more. The Free Forever API tier allows 100 daily API requests at no charge.

• Maxim AI - Simulate, evaluate, and observe your AI agents. Maxim is an end-to-end evaluation and observability platform, helping teams ship their AI agents reliably and >5x faster. Free forever for indie developers and small teams (3 seats).

• microlink.io – It turns any website into data like metatags normalization, beauty link previews, scraping capabilities, or screenshots as a service. 50 requests per day, every day for free.

• Mintlify — Modern standard for API documentation. Beautiful and easy-to-maintain UI components, in-app search, and interactive playground. Free for 1 editor.

• MockAPI — MockAPI is a simple tool that lets you quickly mock up APIs, generate custom data, and perform operations using RESTful interface. MockAPI was meant to be prototyping/testing/learning tool. One project/2 resources per project for free.

• Mockerito — Free mock REST API service providing realistic data across 9 domains (e-commerce, finance, healthcare, education, recruitment, social media, stock markets, weather, and aviation). No mandatory signup, no API keys, unlimited requests. Perfect for frontend prototyping, API testing, learning and teaching web development.

• Mockfly — Mockfly is a trusted development tool for API mocking and feature flag management. Quickly generate and control mock APIs with intuitive interface. Free tier offers 500 requests per day.

• Mocko.dev — Proxy your API, choose which endpoints to mock in the cloud and inspect traffic, free. Speed ​​up your development and integration tests.

• Multi-Exit IP Address Checker —  A free and simple tool to check your exit IP address across multiple nodes and understand how your IP appears to different global regions and services. Useful for testing rule-based DNS splitting tools like Control D.

• numlookupapi.com - Free phone number validation API - 100 free requests / month.

• OCR.Space — An OCR API parses images and pdf files that return the text results in JSON format. 25,000 requests per month for free and 1MB file size limit.

• OpenAPI3 Designer — Visually create Open API 3 definitions for free.

• Parseur — 20 free pages/month: Extract data from PDFs, emails. AI powered. Full API access.

• PDF-API.io - PDF Automation API, visual template editor or HTML to PDF, dynamic data integration, and PDF rendering with API. Free plan with 1 template, 100 PDFs/month.

• PDFBolt - Developer-focused PDF API generation designed with privacy in mind. It offers Stripe-inspired documentation and includes 500 free PDF conversions per month.

• pdfEndpoint.com - Effortlessly convert HTML or URLs to PDF with a simple API. 100 conversions per month for free.

• Pixela - Free daystream database service. All operations performed by API. Visualization with heat maps and line graphs is also possible.

• Postman — Simplify workflows and create better APIs – faster – with Postman, a collaboration platform for API development. Use the Postman App for free forever. Postman cloud features are also free forever with certain limits.

• PrefectCloud — A complete platform for dataflow automation. The free plan includes 5 deployed workflows and 500 minutes of serverless compute credits per month.

• Preset Cloud - A hosted Apache Superset service. Forever free for teams of up to 5 users, featuring unlimited dashboards and charts, no-code chart builder, and collaborative SQL editor.

• ProxySentry - IP API that detects residential proxies and VPNs. ProxySentry.io offers free tier with 10k requests per month on rapidapi.com.

• Reducto - Turn any unstructured documents (PDF, XLSX, JPG, PPTX, etc.) into structured JSON data. Parse, extract data, and edit PDF forms. Free tier with 15k free credits and pay-as-you-go.

• Rendi - FFmpeg API - A REST API for FFmpeg, run FFmpeg online without handling the infrastructure. Free tier with monthly processing quota and 4 vCPUs available.

• RequestBin.com — Create a free endpoint to which you can send HTTP requests. Any HTTP requests sent to that endpoint will be recorded with associated payload and headers so you can observe recommendations from webhooks and other services.

• ROBOHASH - Web service to generate unique and cool images from any text.

• Scraper's Proxy — Simple HTTP proxy API for scraping. Scrape anonymously without having to worry about restrictions, blocks or captchas. First 100 successful scrapes per month for free including javascript rendering (more available if you contact support).

• ScrapingAnt — Headless Chrome scraping API and free checked proxies service. Javascript rendering, premium rotating proxies, CAPTCHAs avoided. 10,000 free API credits.

• SerpApi - Real-time search engine scraping API. Returns structured JSON results for Google, YouTube, Bing, Baidu, Walmart, and many other machines. Free plan includes 100 successful API calls per month.

• Sheetson - Instantly turn any Google Sheets into RESTful API. Free plan available, includes 1,000 free rows per sheet.

• Simplescraper — Trigger your webhook after each operation. Free plan includes 100 cloud scraping credits.

• Geekflare API - Geekflare API lets you scrape websites into Markdown, take screenshots, perform TLS scans and DNS lookups, test load times, and more. The free plan offers 500 API credits per month (e.g., 500 DNS lookups, 250 web scrapes, or 100 screenshots). See credit mapping.

• SmartParse - SmartParse is a data migration and CSV to API platform that offers time- and cost-saving developer tools. Free tier includes 300 Processing Units per month, Browser uploads, Data quarantining, Circuit breakers, and Job Alerts.

• Sofodata - Create secure RESTful APIs from CSV files. Upload CSV file and instantly access the data via its API allowing faster application development. The free plan includes 2 APIs and 2,500 API calls per month. You don't need a credit card.

• Sqlable - A collection of free online SQL tools, including SQL formatter and validator, SQL regex tester, fake data generator, and interactive database playgrounds.

• Supportivekoala — Allows you to autogenerate images by your input via templates. The free plan allows you to create up to 50 images per month.

• Svix - Webhooks as a Service. Send up to 50,000 messages/month for free.

• Tavily AI - API for online search and rapid insights and comprehensive research, with capability of organization of research results. 1000 requests/month for free tier with No credit card required.

• The IP API - IP Geolocation API with 1000 free requests/day. Provides information about the location of an IP address, including country, city, region, and more.

• TinyMCE - rich text editing API. Core features are free for unlimited usage.

• Tomorrow.io Weather API - Offers free plan of weather API. Provides accurate and up-to-date weather forecasting with global coverage, historical data and weather monitoring solutions.

• Treblle - Treblle helps teams build, ship, and govern APIs. With advanced API log aggregation, observability, docs, and debugging. You get all features for free, but there is limit of up to 250k requests per month on the free tier.

• UniRateAPI – Real-time exchange rates for 590+ currencies and cryptos. Unlimited API calls on free plan, perfect for developers and finance apps.

• vatcheckapi.com - Simple and free VAT number validation API. 150 free validations per month.

• WeatherXu — Global weather data including current conditions, hourly and daily forecasts, and weather alerts via our API. Integrating AI models and ML systems to analyze and combine multiple weather models to deliver improved forecast accuracy. Free tier includes 10,000 API calls/month.

• WebScraping.AI - Simple Web Scraping API with built-in parsing, Chrome rendering, and proxies. 2,000 free API calls per month.

• Weights & Biases — The developer-first MLOps platform. Build better models faster with experiment tracking, dataset versioning, and model management. Free tier for personal projects only, with 100 GB storage included.

• What The Diff - AI-powered code review assistant. Free plan has limit of 25,000 monthly tokens (~10 PRs).

• wolfram.com — Built-in knowledge-based algorithms in the cloud.

• wrapapi.com — Turn any website into parameterized API. 30k API calls per month.

• Zenscrape — Web scraping API with headless browsers, residential IPs pricing, and straightforward. 1,000 free API calls/month and extra credits for students and non-profits.

• Zipcodebase - Free Zip Code API, access to Worldwide Postal Code Data. 5,000 free requests/month.

• Zipcodestack - Free Zip Code API and Postal Code Validation. 10,000 free requests/month.

• Zuplo - Free API Management platform to design, build, and deploy APIs to Edge. Add API Key authentication, rate limiting, developer documentation and Monetization to any API in minutes. OpenAPI-native and fully-programmable with web standard apis & Typescript. Free plan offers up to 10 projects, unlimited production edge environments, 1M monthly requests, and 10GB egress.

• New addition: OpenAI API - Free tier with credits for testing models like GPT-3.5.

• Hugging Face - Free hosting for ML models and datasets.

• Google Maps API - Free tier with $200 credits/month for geolocation and maps.

Artifact Repository

• Gemfury — Private and public artifact repos for Maven, PyPi, NPM, Go Module, Nuget, APT, and RPM repositories. Free for public projects.

• jitpack.io — Maven repository for JVM and Android projects on GitHub, free for public projects.

• paperspace — Build & scale AI models, Develop, train, and deploy AI applications, free plan: public projects, 5Gb storage, basic instances.

• RepoFlow - RepoFlow Simplifies package management with support for npm, PyPI, Docker, Go, Helm, and more. Try it for free with 10GB storage, 10GB bandwidth, 100 packages, and unlimited users in the cloud, or self-hosted for personal use only.

• RepoForge - Private cloud-hosted repository for Python, Debian, NPM packages and Docker registries. Free plan for open source/public projects.

• repsy.io — 1 GB Free private/public Maven Repository.

• GitHub Packages - Free for public repos, 500MB storage.

Tools for Teams and Collaboration

• 3Cols - A free cloud-based code snippet manager for personal and collaborative code.

• BookmarkOS.com - Free all-on-one bookmark manager, tab manager, and task manager in customizable online desktop with folder collaboration.

• Braid — Chat app designed for teams. Free for public access group, unlimited users, history, and integrations. also, it provides self-hostable open-source version.

• Calendly — Calendly is a tool for connecting and scheduling meetings. Free Plan provides 1 Calendar connection per user and Unlimited sessions. Desktop and Mobile apps also offered.

• cally.com — Find the perfect time and date for meeting. Simple to use, works great for small and large groups.

• Chanty.com — Chanty is another alternative to Slack. It has free forever plan for small teams (up to 10) with unlimited public and private conversations, searchable history, unlimited 1:1 audio calls, unlimited voice messages, 10 integrations, and 20 GB storage per team.

• DevToolLab — Online developer tools offering free access to all basic tools, with ability to auto save one entry per tool, standard processing speed, and community support.

• Discord — Chat with public/private rooms. Markdown text, voice, video, and screen sharing capabilities. Free for unlimited users.

• Dubble — Free Step-by-Step Guide creator. Take screenshots, document processes and collaborate with your team. Also supports async screen recording.

• Duckly — Talk and collaborate in real time with your team. Pair programming with IDE, terminal sharing, voice, video, and screen sharing. Free for small teams.

• element.io — A decentralized and open-source communication tool built on Matrix. Group chats, direct messaging, encrypted file transfers, voice and video chats, and easy integration with other services.

• evernote.com — Tool for organizing information. Share your notes and work together with others

• Fibery — Connected workspace platform. Free for single users, up to 2 GB disk space.

• Fibo - A free online realtime scrum poker tool for agile teams that lets unlimited members estimate story points for faster planning.

• Fizzy - Kanban-based platform for project management and issue tracking. Create public boards, set up webhooks, use card stamping, and track unlimited users — free for up to 1000 items.

• flat.social - Interactive customizable spaces for team meetings & happy hours socials. Unlimited meetings, free for up to 8 concurrent users.

• flock.com — A faster way for your team to communicate. Free Unlimited Messages, Channels, Users, Apps & Integrations

• GitBook — Platform for capturing and documenting technical knowledge — from product docs to internal knowledge bases and APIs. Free plan for individual developers.

• GitDailies - Daily reports of your team's Commit and Pull Request activity on GitHub. Includes Push visualizer, peer recognition system, and custom alert builder. Free tier has unlimited users, 3 repos, and 3 alert configs.

• gitter.im — Chat, for GitHub. Unlimited public and private rooms, free for teams up to 25

• gokanban.io - Syntax-based, no registration Kanban Board for fast use. Free with no limitations.

• Hackmd.io - Real time collaboration & writing tool for markdown format docs/files. Like Google Docs but for markdown files. Free unlimited number of "notes", but number of collaborators (invitee) for private notes & templates will be limited.

• HeySpace - Task management tool with chat, calendar, timeline and video calls. Free for up to 5 users.

• Huly - All-in-One Project Management Platform (alternative to Linear, Jira, Slack, Notion, Motion) - unlimited users, 10GB storage per workspace, 10GB video(audio) traffic.

• Keybase — Keybase is a FOSS alternative to Slack; it keeps everyone's chats and files safe, from families to communities to companies.

• Linkinize — Bookmark manager for teams with tagging, multi-workspaces, and collaboration. Free plan includes 4 workspaces and 10 team members.

• Lockitbot — Reserve and lock shared resources within Slack such as Rooms, Dev environments, servers etc. Free for upto 2 resources

• meet.jit.si — One-click video conversations, free

• Miro - Scalable, secure, cross-device, and enterprise-ready collaboration whiteboard for distributed teams. With freemium plan.

• Notion - Notion is a note-taking and collaboration application with markdown support that integrates tasks, wikis, and databases. The company describes the app as an all-in-one workspace for note-taking, project management and task management. In addition to cross-platform apps, it can be accessed via most web browsers.

• Nuclino - A lightweight and collaborative wiki for all your team's knowledge, docs, and notes. Free plan with all essential features, up to 50 items, and 5GB storage.

• OnlineInterview.io - Free code interview platform with embedded video chat, drawing board, and online code editor where you can compile and run your code on the browser. You can create remote interview room with just one click.

• paste.sh — This is JavaScript and Crypto based simple paste site.

• Pastefy - Beautiful and simple Pastebin with optional Client-Encryption, Multitab-Pastes, an API, a highlighted Editor and more.

• Pendulums - Pendulums is a free time tracking tool that helps you manage your time in better manner with easy-to-use interface and valuable statistics.

• Proton Pass — Password manager with built-in email aliases, 2FA authenticator, sharing and passkeys. Available on web, browser extension, and mobile app and desktop.

• Pullflow — Pullflow offers an AI-enhanced platform for code review collaboration across GitHub, Slack, and VS Code.

• Pumble - Free team chat app. Unlimited users and message history, free forever.

• Quidlo Timesheets - A simple timesheet and time tracking app for teams. The free plan has time tracking and generating reports features for up to 10 users.

• Raindrop.io - Private and secure bookmarking app for macOS, Windows, Android, iOS, and Web. Free Unlimited Bookmarks and Collaboration.

• Revolt.chat — An OpenSource alternative toDiscord, that respects your privacy. It also has most proprietary features from discord for free. Revolt is all in one application that is secure and fast, while being 100% free. every features is free. They also have (official & unofficial) plugins support unlike most main-stream chatting applications.

• Rocket.Chat - Open-source communication platform with Omnichannel features, Matrix Federation, Bridge with other apps, Unlimited messaging, and Full messaging history.

• ruttl.com — The best all-in-one feedback tool to collect digital feedback and review websites, PDFs, and images.

• Screen Sharing via Browser - Free screen sharing tool, share your screen with collabrators right from your browser, no download or registration needed. Free.

• seafile.com — Private or cloud storage, file sharing, sync, discussions. Cloud version only 1 GB

• SiteDots - Share feedback for website projects directly on your website, no emulation, canvas or workarounds. Completely functional tier for free.

• Slab — A modern knowledge management service for teams. Free for up to 10 users.

• slack.com — Free for unlimited users with some feature limitations

• StatusPile - A status page of status pages. Could you track the status pages of your upstream providers?

• Stickies - Visual collaboration app used for brainstorming, content curation, and notes. Free for up to 3 Walls, unlimited users, and 1 GB storage.

• StreamBackdrops — Free HD virtual backgrounds for video calls and team meetings. Professional backgrounds for Zoom, Teams, and Google Meet. No signup required, free for personal use.

• talky.io — Free group video chat. Anonymous. Peer‑to‑peer. No plugins, signup, or payment required

• Teamcamp - All-in-one project management application for software development companies.

• Teamhood - Free Project, Task, and Issue-tracking software. Supports Kanban with Swimlanes and full Scrum implementation. Has integrated time tracking. Free for 5 users and 3 project portfolios.

• Teamplify - improve team development processes with Team Analytics and Smart Daily Standup. Includes full-featured Time Off management for remote-first teams. Free for small groups up to 5 users.

• Telegram — Telegram for everyone who wants fast, reliable messaging and calls. Business users and small teams may like the large groups, usernames, desktop apps, and powerful file-sharing options.

• Tencent RTC — Tencent Real-Time Communication (TRTC) offers solutions for group audio/video calls.10,000 free minutes/month for the first year.

• TimeCamp - Free time tracking software for unlimited users. Easily integrates with PM tools like Jira, Trello, Asana, etc.

• tldraw.com —  Free open-source white-boarding and diagramming tool with intelligent arrows, snapping, sticky notes, and SVG export features. Multiplayer mode for collaborative editing. Free official VS Code extension available as well.

• transfernow — simple, fastest and safest interface to transfer and share files. Send photos, videos and other large files without manual subscription.

• Tugboat - Preview every pull request, automated and on-demand. Free for all, complimentary Nano tier for non-profits.

• twist.com — An asynchronous-friendly team communication app where conversations stay organized and on-topic. Free and Unlimited plans available. Discounts provided for eligible teams.

• userforge.com - Interconnected online personas, user stories and context mapping.  Helps keep design and dev in sync for free for up to 3 personas and 2 collaborators.

• Visual Debug - A Visual feedback tool for better client-dev communication

• Webex — Video meetings with free plan offering 40 minutes per meeting with 100 surveys.

• Webvizio — Website feedback tool, website review software, and bug reporting tool for streamlining web development collaboration on tasks directly on live websites and web apps, images, PDFs, and design files.

• whereby.com — One-click video conversations, free (formerly known as appear.in)

• windmill.dev - Windmill is an open-source developer platform to quickly build production-grade multi-step automation and internal apps from minimal Python and Typescript scripts. As a free user, you can create and be a member of at most 3 non-premium workspaces.

• wistia.com — Video hosting with viewer analytics, HD video delivery, and marketing tools to help understand your visitors, 25 videos, and Wistia branded player

• wormhol.org — Straightforward file sharing service. Share unlimited files up to 5GB with as many peers as you want.

• Wormhole - Share files up to 5GB with end-to-end encryption for up to 24hours. For files larger than 5 GB, it uses peer-to-peer transfer to send your files directly.

• zoom.us — Secure Video and Web conferencing add-ons available. Free plan limited to 40 minutes.

• Zulip — Real-time chat with unique email-like threading model. The free plan includes 10,000 messages of search history and File storage up to 5 GB. also, it provides self-hostable open-source version.

• RightFeature — Easily collect feedback from your customers, turn customer feedback into your product roadmap. Collect, prioritize, and ship features that actually matter to your users.

• Microsoft Teams - Free for individuals with video calls and chat.

CMS

• Contentful — Headless CMS. Content management and delivery APIs in the cloud. Comes with one free Community space that includes 5 users, 25K records, 48 ​​Content Types, 2 locales.

• Cosmic — Headless CMS and API toolkit. Free plan for developers.

• Crystallize — Headless PIM with ecommerce support. Built-in GraphQL API. Free plan includes unlimited users, 1000 catalog items, 5 GB/month bandwidth, and 25k/month API calls.

• DatoCMS - Free tier offers for small projects. DatoCMS is GraphQL-based CMS. On the lower tier, you have 100k/month calls.

• Hygraph - Free tier offers for small projects. GraphQL first API. Move away from legacy solutions to GraphQL native Headless CMS - and deliver omnichannel content API first.

• Prismic — Headless CMS. Content management interface with fully hosted and scalable API. The Community Plan provides unlimited API calls, documents, custom types, assets, and locales to one user. Everything that you need for your next project. Bigger free plans available for Open Content/Open Source projects.

• Sanity.io - Platform for structured content with open-source editing environment and real-time hosted data store. Unlimited projects. Unlimited admin users, 3 non-admin users, 2 datasets, 500K API CDN requests, 10GB bandwidth, and 5GB assets included for free per project.

• Solo - Free AI website creator from Mozilla, create beautiful website for your business from a few simple inputs. Free custom domain, no credit card needed.

• Squidex - Free tier offers for small projects. API / GraphQL first. Open source and based on event sourcing (versing every change automatically).

• Storyblok - A Headless CMS for developers and marketers that works with all modern frameworks. The Community (free) tier offers Management API, Visual Editor, 10 sources, Custom Field Types, Internationalization (unlimited languages/locales), Asset Manager (up to 2500 assets), Image Optimizing Service, Search Query, Webhooks + 250GB Traffic/month included.

• TinaCMS — Replacing Forestry.io. Open source Git-backed headless CMS that supports Markdown, MDX, and JSON. The basic offer is free with 2 users available.

• Strapi - Open-source headless CMS, self-hosted for free.

Code Generation

• Appinvento — A free no-code app builder. It provides complete access to automatically generated backend source code and allows for unlimited APIs and routes. Free plan includes 3 projects and 5 tables.

• DhiWise — Converts Figma designs into dynamic Flutter and React applications. Its code generation technology designed to optimize workflows for building production-ready mobile and web experiences.

• Karbon Sites — An AI-powered site builder and editor that generates production-ready frontend code from text prompts, sketches, or resumes. Features include native Android (APK) export and free tier with 5 generations per month (unlimited via custom Gemini API key).

• Metalama — A C#-specific tool that generates boilerplate code on the fly during compilation to keep source code clean. It's free for open-source projects; its free commercial-friendly tier includes up to 3 aspects.

• Supermaven — A high-speed AI code completion plugin for VS Code, JetBrains, and Neovim. Free tier provides unlimited inline completions with focus on ultra-low latency.

• v0.dev — Created by Vercel, v0 generates copy-and-paste friendly React code using shadcn/ui and Tailwind CSS. It uses credit system, providing 1,200 starting credits and 200 free credits monthly.

• Tabnine - AI code completion, free tier with basic features.

Code Quality

• beanstalkapp.com — A complete workflow to write, review, and deploy code), free account for 1 user and 1 repository with 100 MB storage

• codacy.com — Automated code reviews for PHP, Python, Ruby, Java, JavaScript, Scala, CSS and CoffeeScript, free for unlimited public and private repositories

• Codeac.io - Automated Infrastructure as Code review tool for DevOps integrates with GitHub, Bitbucket and GitLab (even self-hosted). In addition to standard languages, it also analyzes Ansible, Terraform, CloudFormation, Kubernetes, and more. (open-source free)

• CodeFactor — Automated Code Review for Git. The free version includes unlimited users, public repositories and 1 private repo.

• coderabbit.ai — AI-powered code review tool that integrates with GitHub/GitLab. The free tier includes 200 files/hour, 3 reviews per hour, and 50 conversations/hour. Free forever for open source projects.

• CodSpeed - Automate performance tracking in your CI pipelines. Catch performance regressions before deployment, thanks to precise and consistent metrics. Free forever for Open Source projects.

• coveralls.io — Display test coverage reports, free for Open Source

• deepscan.io — Advanced static analysis for automatically finding runtime errors in JavaScript code, free for Open Source

• DeepSource - DeepSource continuously analyzes source code changes, finding and fixing issues categorized under security, performance, anti-patterns, bug-risks, documentation, and style. Native integration with GitHub, GitLab, and Bitbucket.

• DiffText - Instantly find the differences between two blocks of code. Completely free to use.

• eversql.com — EverSQL - The #1 platform for database optimization. Gain critical insights into your database and SQL queries automatically.

• gerrithub.io — Gerrit code review for free GitHub repositories

• goreportcard.com — Code Quality for Go projects, free for Open Source

• gtmetrix.com — Reports and thorough recommendations to optimize websites

• holistic.dev - The #1 static code analyzer for Postgresql optimization. Performance, security, and architect database issues automatic detection service

• houndci.com — Comments on GitHub commits about code quality, free for Open Source

• reviewable.io — Code review for GitHub repositories, free for public or personal repos.

• scan.coverity.com — Static code analysis for Java, C/C++, C# and JavaScript, free for Open Source

• scrutinizer-ci.com — Continuous inspection platform, free for Open Source

• semanticdiff.com — Programming language aware diff for GitHub pull requests and commits, free for the public repositories

• shields.io — Quality metadata badges for open source projects

• sonarcloud.io — Automated source code analysis for Java, JavaScript, C/C++, C#, VB.NET, PHP, Objective-C, Swift, Python, Groovy and even more languages, free for Open Source

• ESLint - Open-source linter for JavaScript, free.

Search and Browse Code

• CodeKeep - Google Keep for Code Snippets. Organize, Discover and share code snippets, featuring powerful code screenshot tool with preset templates and linking feature.

• libraries.io — Search and dependency update notifications for 32 different package managers, free for open source

• Namae - Search various websites like GitHub, Gitlab, Heroku, Netlify, and many more for availability of your project name.

• tickgit.com — Surfaces TODO comments (and other markers) to identify areas of code worth returning come for improvement.

• Sourcegraph - Universal code search, free for open source.

CI And CD

• appcircle.io — An enterprise-grade mobile DevOps platform that automates the build, test, and publish store of mobile apps for faster, efficient release cycle. Free for 30 minutes max build time per build, 20 monthly builds and 1 concurrent build.

• appveyor.com — CD service for Windows, free for Open Source

• bitrise.io — A CI/CD for mobile apps, native or hybrid. With 200 free builds/month 10 min build time and 2 team members. OSS projects get 45 min build time, +1 concurrency and unlimited team size.

• buddy.works — A CI/CD with 5 free projects and 1 concurrent run (120 executions/month)

• Buildkite CI Pipelines is free for 3 users and 5k job minutes/month. The free Test Analytics developer tier includes 100k test executions/month, with more free inclusions for open-source projects.

• bytebase.com — Database CI/CD and DevOps. Free under 20 users and 10 database instances

• CircleCI — Comprehensive free plan with all features included in hosted CI/CD service for GitHub, GitLab, and BitBucket repositories. Multiple resource classes, Docker, Windows, Mac OS, ARM executors, local runners, test splitting, Docker Layer Caching, and other advanced CI/CD features. Free for up to 6000 minutes/month execution time, unlimited collaborators, 30 parallel jobs in private projects, and up to 80,000 free build minutes for Open Source projects.

• cirrus-ci.org - Free for public GitHub repositories

• cirun.io - Free for public GitHub repositories

• codemagic.io - Free 500 build minutes/month

• deployhq.com — 1 project with 10 daily deployments (30 build minutes/month)

• LocalOps - Deploy your app on AWS/GCP/Azure in under 30 minutes. Setup standardized app environments on any cloud, which comes with in-built continuous deployment automation and advanced observability. The free plan allows 1 user and 1 app environment.

• Make — The workflow automation tool lets you connect apps and automate workflows using UI. It supports many apps and most popular APIs. Free for public GitHub repositories, and free tier with 100 Mb, 1000 Operations, and 15 minutes of minimum interval.

• Mergify — workflow automation and merge queue for GitHub — Free for public GitHub repositories

• Nx Cloud - Nx Cloud speeds up your monorepos on CI with features like remote caching, distribution of tasks across machines and even automated splitting of your e2e test runs. It comes with a free plan for up to 30 contributors with generous 150k credits included.

• RunMyJob - Run GitHub Actions and GitLab CI pipelines smarter with real-time scaling Spike Instances. The free tier includes 400 vCPU-minutes, 800 GB-minutes, and 10 concurrent jobs with high-performance runners (12 vCPU and 32 GB RAM per job).

• Shipfox - Run your GitHub actions 2x faster, 3,000 build minutes for free every month.

• Spacelift - Management platform for Infrastructure as Code. Free plan features: IaC collaboration, Terraform module registry, ChatOps integration, Continuous resource compliance with Open Policy Agent, SSO with SAML 2.0, and access to public worker pools: up to 200 minutes/month

• Squash Labs — creates VMs for each branch and makes your app available from unique URL, Unlimited public & private repos, Up to 2 GB VM Sizes.

• Terramate - Terramate is the orchestration and management platform for Infrastructure as Code (IaC) tools like Terraform, OpenTofu, and Terragrunt. Free for up to 2 users including all features.

• Terrateam - GitOps-first Terraform automation with pull request-driven workflows, project isolation via self-hosted runners, and layered runs for ordered operations. Free for up to 3 users.

• GitHub Actions - Free 2,000 minutes/month for public repos.

Test

• Appetize — Test your Android & iOS apps on this Cloud Based Android Phone / Tablets emulator and iPhone/iPad simulators directly in your browser. The free tier includes 2 concurrent sessions with 30 minutes of usage per month. No limit on app size.

• Argos - Open Source visual testing for developers. Unlimitedprojects, with 5,000 screenshots per month. Free for open-source projects.

• Bencher - A continuous benchmarking tool suite to catch CI performance regressions. Free for all public projects.

• BugBug - Lightweight test automation tool for web applications. It's easy to learn and doesn't require coding. You can run unlimited tests on your own computer for free. You also get cloud monitoring and CI/CD integration for additional monthly fee.

• checkbot.io — Browser extension that tests if your website follows 50+ SEO, speed and security best practices. Free tier for smaller websites.

• Checkly - Code-first synthetic monitoring for modern DevOps. Monitor your APIs and apps at fraction of the price of legacy providers. Powered by Monitoring as Code workflow and Playwright. Generous free tier for devs.

• CORS-Tester - A free tool for developers and API testers to check if API is CORS-enabled for given domain and identified gaps. Get actionable insights.

• cypress.io - Fast, easy and reliable testing for anything that runs in the browser. Cypress Test Runner is always free and open-source with no restrictions and limitations. Cypress Dashboard is free for open-source projects for up to 5 users.

• everystep-automation.com — Records and replays all steps made in the web browser and creates scripts, free with fewer options

• gridlastic.com — Selenium Grid testing with free plan up to 4 simultaneous selenium nodes/10 grid starts/4,000 test minutes/month

• katalon.com - Provides testing platform that can help teams of all sizes at different levels of testing maturity, including  Katalon Studio, TestOps (+ Free Visual Testing), TestCloud, and Katalon Recorder.

• Keploy - Keploy is a functional testing toolkit for developers. Recording API calls generates E2E tests for APIs (KTests) and mocks or stubs (KMocks). It's free for Open Source projects.

• loadmill.com - Automatically create API and load tests by analyzing network traffic. Simulate up to 50 concurrent users for up to 60 minutes free monthly.

• lost-pixel.com - comprehensive visual regression testing for your Storybook, Ladle, Histoire stories and Web Apps. Unlimited team members, completely free for open-source, 7,000 snapshots/month.

• pagegym.com - Load behavior and page speed analysis and optimization tool. The free plan provides 10 tests per day, 5 experiments per week, and 15 GB of maximum ingested data per month.

• percy.io - Add visual testing to any web app, static site, style guide, or component library.  Unlimited team members, Demo app, and unlimited projects, 5,000 snapshots/month.

• qase.io - Test management system for Dev and QA teams. Manage test cases, compose test runs, perform tests, track defects, and measure impact. The free tier includes all core features, with 500MB available for attachments and up to 3 users.

• Repeato No-code mobile app test automation tool built on top of computer vision and AI. Works for native apps, flutter, react-native, web, ionic, and many more app frameworks. The free plan is limited to 10 tests for iOS and 10 for Android, but includes most of the features of the paid plans, including unlimited test runs.

• Requestly Open-source Chrome Extension to Intercept, Redirect and Mock HTTP Requests. Featuring Debugger, Mock Server, API Client and Session Recording.  Redirect URLs, Modify HTTP Headers, Mock APIs, Inject custom JS, Modify GraphQL Requests, Generate Mock API Endpoints, Record session with Network & Console Logs. Create upto 10 rules in Free Tier. Free for open-source.

• seotest.me — Free on-page SEO website tester. 10 free website crawls every day. Useful SEO learning resources and recommendations on how to improve the on-page SEO results for any website regardless of technology.

• snippets.uilicious.com - It's like CodePen but for cross-browser testing. UI-licious lets you write tests like user stories and offers free platform - UI-licious Snippets - that allows you to run unlimited tests on Chrome with no sign-up required for up to 3 minutes per test run. Found a bug? You can copy the unique URL to your test to show your devs exactly how to reproduce the bug.

• SSR (Server-side Rendering) Checker - Check SSR (server-side rendering) for any URL by visually comparing the server rendered version of the page with regularity version.

• testingbot.com — Selenium Browser and Device Testing, free for Open Source

• Testspace.com - A Dashboard for publishing automated test results and Framework for implementing manual tests as code using GitHub. The service free for Open Source and accounts for 450 monthly results.

• tesults.com — Test results reporting and test case management. Integrates with popular test frameworks. Open Source software developers, individuals, educators, and small teams getting started can request discounted and free offerings beyond basic free projects.

• UseWebhook.com - Capture and inspect webhooks from your browser. Forward to localhost, or replay from history. Free to use.

• Vaadin — Build scalable UIs in Java or TypeScript, and use the integrated tooling, components, and design system to iterate faster, design better, and simplify the development process. Unlimited Projects with 5 years free maintenance.

• webhook-test.com - Debug and inspect webhooks and HTTP requests with unique URL during integration. Completely free, you can create unlimited URLs and receive recommendations.

• webhook.site - Verify webhooks, outbound HTTP requests, or emails with custom URLs. A temporary URL and email address are always free.

• websitepulse.com — Various free network and server tools.

• kogiQA — A web UI automation tool that functions without the need for selectors. Every developer gets 500 actions per month for free.

• Postman - Free tier for API testing with collections and environments.

Security and PKI

• aikido.dev — All-in-one appsec platform covering SCA, SAST, CSPM, DAST, Secrets, IaC, Malware, Container scanning, EOL,... Free plan includes 2 users, scanning of 10 repos, 1 cloud, 2 containers & 1 domain.

• CertKit - Manage SSL Certificate issuance, renewal, and monitoring. Search the Certificate Transparency Logs. Free for 3 certificates and 1 user after the beta.

• Corgea - Free autonomous security platform that finds, validates and fixes insecure code and packages across +20 languages ​​and frameworks. Free plan includes 1 user and 2 repos. 

• crypteron.com — Cloud-first, developer-friendly platform preventing data suppression in .NET and Java applications

• CyberChef — A simple, intuitive web app for analyzing and decoding/encoding data without dealing with complex tools or programming languages. Like Swiss army knife of cryptography & encryption. All features are free to use, no limit. Open source if you wish to self-host.

• Datree — Open Source CLI tool to prevent Kubernetes misconfigurations by ensuring that manifests and Helm charts follow best practices as well as your organization’s policies

• Dependabot Automated dependency updates for Ruby, JavaScript, Python, PHP, Elixir, Rust, Java (Maven and Gradle), .NET, Go, Elm, Docker, Terraform, Git Submodules, and GitHub Actions.

• DJ Checkup — Scan your Django site for security flaws with this free, automated checkup tool. Forked from Pony Checkup site.

• Doppler — Universal Secrets Manager for application secrets and configuration, with support for syncing to various cloud providers. Free for 5 users with basic access controls.

• Dotenv — Sync your .env files, quickly & securely. Stop sharing your .env files over insecure channels like Slack and email, and never lose an important .env file again. Free for up to 3 teammates.

• GitGuardian — Keep secrets out of your source code with automated secrets detection and remediation. Scan your git repos for 350+ types of secrets and sensitive files – Free for individuals and teams of 25 developers or less.

• HasMySecretLeaked - Search across 20 million exposed secrets in public GitHub repositories, gists, issues, and comments for free fee

• Have I been pwned? — REST API for fetching the information on the drafted.

• hostedscan.com — Online vulnerability scanner for web applications, servers, and networks. 10 free scans per month.

• Infisical — Open source platform that lets you manage developer secrets across your team and infrastructure: everywhere from local development to staging/production 3rd-party services. Free for up to 5 developers.

• Internet.nl — Tests for modern Internet Standards such as IPv6, DNSSEC, HTTPS, DMARC, STARTTLS and DANE

• letsencrypt.org — Free SSL Certificate Authority with certs trusted by all major browsers

• meterian.io - Monitor Java, Javascript, .NET, Scala, Ruby, and NodeJS projects for security vulnerabilities in dependencies. Free for 1 private project, unlimited projects for open source.

• Mozilla Observatory — Find and fix security vulnerabilities in your site.

• Project Gatekeeper - An All-in-One SSL Toolkit Offering various features such as Private Key & CSR Generator, SSL Certificate Decoder, Certificate Matcher and Order SSL Certificate. We offer the users to generate Free SSL Certificates from Let's Encrypt, Google Trust and BuyPass using CNAME Records rather than TXT Records.

• Protectumus - Free website security check, site antivirus, and server firewall (WAF) for PHP. Email notifications for registered users in the free tier.

• Public Cloud Threat Intelligence — High confidence Indicator of Compromise(IOC) public targeting cloud infrastructure, A portion available on github. Full list available via API

• pyup.io — Monitor Python dependencies for security vulnerabilities and update them automatically. Free for 1 private project, unlimited projects for open source.

• qualys.com — Find web app vulnerabilities, audit for OWASP Risks

• Socket — Free supply chain security for individual developers, small teams, and open source projects. Includes free app and firewall CLI tool to protect your code from vulnerable and malicious dependencies. Detects 70+ indicators of supply chain risk.

• SOOS - Free, unlimited SCA scans for open-source projects. Detect and fix security threats before release. Protect your projects with simple and effective solution.

• ssllabs.com — Intense analysis of the configuration of any SSL web server

• Sucuri SiteCheck - Free website security check and malware scanner

• TestTLS.com - Test SSL/TLS service for secure server configuration, certificates, chains, etc. Not limited to HTTPS.

• Virgil Security — Tools and services for implementing end-to-end encryption, database protection, IoT security, and more in your digital solution. Free for applications with up to 250 users.

• Snyk - Free vulnerability scanning for open source.

Authentication, Authorization and User Management

• 360username - A free tool to search usernames across 90+ social platforms to find matching profiles.

• Aserto - Fine-grained authorization as a service for applications and APIs. Free up to 1000 MAUs and 100 authorizer instances.

• asgardeo.io - Seamless Integration of SSO, MFA, passwordless auth and more. Includes SDKs for frontend and backend apps. Free up to 1000 MAUs and 5 identity providers.

• Auth0 — Hosted SSO. Free plan includes 25,000 MAUs, unlimited Social Connections, custom domain, and more.

• Authgear - Bring Passwordless, OTPs, 2FA, SSO to your apps in minutes. All Front-end included. Free up to 5000 MAUs.

• Authress — Authentication login and access control, unlimited identity providers for any project. Facebook, Google, Twitter và more. The first 1000 free API calls.

• Authy - Two-factor authentication (2FA) on multiple devices, with backups. Drop-in replacement cho Google Authenticator. Free for up to 100 successful authentications.

• Cerbos Hub - A complete authorization management system for authoring, testing, and deploying access policies. Fine-grained authorization and access control, free for up to 100 monthly active principals.

• Clerk - User management, authentication, 2FA/MFA, prebuilt UI components for sign-in, sign-up, user profiles, and more. Free plan includes unlimited applications, 50,000 MRU limit per app, 3 dashboard seats, and more.

• Cloud-IAM — Keycloak Identity and Access Management as a Service. Free up to 100 users and 1 realm.

• Descope — Highly customizable AuthN flows, has both no-code and API/SDK approach, Free 7,500 active users/month, 50 tenants (up to 5 SAML/SSO tenants).

• duo.com — Two-factor authentication (2FA) for website or app. Free for 10 users, all authentication methods, unlimited, integrations, hardware tokens.

• Kinde - Simple, robust authentication you can integrate with your product in minutes.  Everything you need to get started with 7,500 free MAUs.

• logintc.com — Two-factor authentication (2FA) by push notifications, free for 10 users, VPN, Websites and SSH

• Logto - Develop, secure, and manage user identities of your product - for both authentication and authorization. Free for up to 5,000 MAUs with open-source self-hosted option available.

• MojoAuth - MojoAuth makes it easy to implement Passwordless authentication on your web, mobile, or any application in minutes.

• Okta — User management, authentication and authorization. Free for up to 100 monthly active users.

• Ory - AuthN/AuthZ/OAuth2.0/Zero Trust managed security platform. Forever free developer accounts with all security features, unlimited team members, 200 daily active users, and 25k/mo permission checks.

• Permit.io - Auhtorization-as-a-service provider platform enabling RBAC, ABAC, and ReBAC for scalable microservices with real-time updates and no-code policy UI. A 1000 Monthly Active User tier for free.

• Phase Two - Keycloak Open Source Identity and Access Management. Free realm up to 1000 users, up to 10 SSO connections, utilize Phase Two's Keycloak enhanced container which includes Organization extension.

• PropelAuth — A Sell to companies of any size immediately with few lines of code, free up to 200 users and 10k Transactional Emails (with branding watermark: "Powered by PropelAuth").

• Stack Auth — Open-source authentication that doesn't suck. The most developer-friendly solution, getting you started in just 5 minutes. Self-hostable for free, or offers managed SaaS version with 10k free Monthly Active Users.

• Stytch - An all-in-one platform that provides APIs and SDKs for authentication and fraud prevention. The free plan includes 10,000 monthly active users, unlimited organizations, 5 SSO or SCIM connections, and 1,000 M2M tokens.

• SuperTokens - Open source user authentication that natively integrates into your app - enables you to get started quickly while controlling the user and developer experience. experience. Free for up to 5000 MAUs.

• WorkOS - Free user management and authentication for up to 1 Million MAUs. Supports email + password, social auth, Magic Auth, MFA, and more.

• ZITADEL Cloud — A turnkey user and access management that works for you and supports multi-tenant (B2B) use cases. Free for up to 25,000 authenticated requests, with all security features (no paywall for OTP, Passwordless, Policies, and so on).

• Add new: Firebase Authentication - Free for up to 10,000 users/month.

Mobile Application Distribution and Feedback

• Appho.st - Mobile app hosting platform. The free plan includes 5 apps, 50 monthly downloads, and maximum file size of 100 MB.

• Diawi - Deploy iOS & Android apps directly to devices. Free plan: app uploads, password-protected links, 1-day expiration, 10 installations.

• GetUpdraft - Distribute mobile apps for testing. The free plan includes 1 app project, 3 app versions, 500 MB storage, and 100 app installations per month.

• InstallOnAir - Distribute iOS & Android apps over the air. Free plan: unlimited uploads, private links, 2-day expiration for guests, 60 days for registered users.

• Loadly - iOS & Android beta apps distribution service offers completely free services with unlimited downloads, high-speed downloads, and unlimited uploads.

• TestFlight - Free beta testing for iOS apps from Apple.

System Management

• bitnami.com — Deploy prepared apps on IaaS. Management of 1 AWS micro instance free

• Esper — MDM and MAM for Android Devices with DevOps. 100 devices free with 1 user license and 25 MB Application Storage.

• jamf.com —  Device management for iPads, iPhones, and Macs, 3 devices free

• Miradore — Device Management service. Stay up-to-date with your device fleet and secure unlimited devices for free. Free plan offers basic features.

• moss.sh - Help developers deploy and manage their web apps and servers. Free up to 25 git deployments per month

• ploi.io - Server management tool to easily manage and deploy your servers & sites. Free for 1 server.

• runcloud.io - Server management focusing mainly on PHP projects. Free for up to 1 server.

• serveravatar.com — Manage and monitor PHP-based web servers with automated configurations. Free for 1 server.

• xcloud.host — Server management and deployment platform with user-friendly interface. Free tier available for 1 server.

• New addition: CapRover - Self-hosted PaaS for Docker, free.

⬆️ Back to Top

Messages and Streaming

• Ably - Realtime messaging service with presence, persistence and guaranteed delivery. The free plan includes 3m messages per month, 100 peak connections, and 100 peak channels.

• cloudamqp.com — RabbitMQ as a Service. Little Lemur plan: max 1 million messages/month, max 20 concurrent connections, max 100 queues, max 10,000 queued messages, multiple nodes in different AZ's

• courier.com — Single API for push, in-app, email, chat, SMS, and other messaging channels with template management and other features. Free plan includes 10,000 messages/mo.

• EMQX Serverless - Scalable and secure serverless MQTT broker you can get in seconds. 1M session minutes/month free forever (no credit card required).

• Engage - All-in-one Customer Engagement and Automation Tool (email, push, SMS, product tours, banners and more) for SaaS. Free for up to 1,000 active users per month.

• engagespot.co — Multi-channel notification infrastructure for developers with prebuilt in-app inbox and no-code template editor. Free plan includes 10,000 messages/mo.

• HiveMQ - Connect your MQTT devices to the Cloud Native IoT Messaging Broker.  Free to connect up to 100 devices (no credit card required) forever.

• httpSMS - Send and receive text messages using your Android phone as an SMS Gateway. Free to send and receive up to 200 messages per month.

• knock.app – Notifications infrastructure for developers. Send to multiple channels like in-app, email, SMS, Slack, and push with a single API call. Free plan includes 10,000 messages/mo.

• Novu.co — The open-source notification infrastructure for developers. Simple components and APIs for managing all communication channels in one place: Email, SMS, Direct, In-App and Push. Free plan includes 30,000 notifications/month with 90 days of retention.

• Pingram.io — Communication infrastructure in 5 minutes. Free tier includes: 100 SMS and calls, 3000 Emails, Push, Slack, MS Teams, WhatsApp, and more. 

• Pocket Alert - Send push notifications to your iOS and Android devices. Effortlessly integrate via API or Webhooks and maintain full control over your alerts. Free plan: 50 messages per day to 1 device and 1 application.

• pubnub.com - Swift, Kotlin, and React messaging at 1 million transactions per month. Transactions may contain multiple messages.

• pusher.com — Realtime messaging service. Free for up to 100 simultaneous connections and 200,000 messages/day

• scaledrone.com — Realtime messaging service. Free for up to 20 simultaneous connections and 100,000 events/day

• SMSGate - SMS Gateway for Android™ enables sending and receiving SMS messages through your devices using cloud routing. Completely free cloud service (with recommended notification for usage above 10,000 messages/day to maintain quality for all users).

• SuprSend - SuprSend is a notification infrastructure that streamlines your product notifications with an API-first approach. Create and deliver transactional, crons, and engagement notifications on multiple channels with the single notification API. In the free plan you get 10,000 notifications per month, including different workflow nodes like digests, batches, multi-channels, preferences, tenants, broadcasts and more.

• synadia.com — NATS.io as a service. Global, AWS, GCP, and Azure. Free forever with 4k msg size, 50 active connections, and 5GB of data per month.

• webpushr - Web Push Notifications - Free for upto 10k subscribers, unlimited push notifications, in-browser messaging

• Pusher Beams - Push notifications for mobile, free up to 2000 users.

• Firebase Cloud Messaging - Free unlimited push notifications.

Log Management

• bugfender.com — Free up to 100k log lines/day with 24 hours retention

• log.dog — LogDog is a remote debugging/logging SDK (iOS and Android) with web ui. Captures all logs, requests and events in real-time and allows to intercept them. Free for up to 100MB of logs every month

• logflare.app — Free for up to 12,960,000 entries per app per month, 3 days retention

• logtail.com — ClickHouse-based SQL-compatible log management. Free up to 1 GB per month, 3 days retention.

• logzab.com — Audit trail management system. Free 1,000 user activity logs per month, 1-month retention, for up to 5 projects.

• ManageEngine Log360 Cloud — Log Management service powered by Manage Engine. Free plan offers 50 GB storage with 15 days Storage Retention and 7 days search.

• openobserve.ai - 200 GB Ingestion/month free, 15 Days Retention

• Loggly - Free for 200MB/day with 7-day retention.

Translation Management

• AutoLocalise.com — Instantly localize without managing translation files. Free for up to 10,000 characters/month, unlimited languages.

• crowdin.com — Unlimited projects, unlimited strings, and collaborators for Open Source

• Free PO editor — Free for everybody

• Lingo.dev – Open-source AI-powered CLI for web & mobile localization. Bring your own LLM, or use 10,000 free words every month via Lingo.dev-managed localization engine.

• lingohub.com — Free up to 3 users, always free for Open Source

• localazy.com - Free for 1000 source language strings, unlimited languages, unlimited contributors, startups and open source deals

• Localit – Fast, developer-friendly localization platform with seamless and free GitHub/GitLab integration, AI-assisted and manual translations, and generous free plan (includes 2 users, 500 keys, and unlimited projects).

• localizely.com — Free for Open Source

• Loco — Free up to 2000 translations, Unlimited translators, 10 languages/project, 1000 translatable assets/project

• POEditor — Free up to 1000 strings

• SimpleLocalize - Free up to 100 translation keys, unlimited strings, unlimited languages, startup deals

• Texterify - Free for single users

• Tolgee - Free SaaS offering with limited translations, forever-free self-hosted version

• transifex.com — Free for Open Source

• Weblate - Open-source translation management, free self-hosted.

Monitoring Sat

• assertible.com — Automated API testing and monitoring. Free plans for teams and individuals.

• Better Stack - Uptime monitoring, incident management, on-call scheduling/alerting, and status pages in single product. Free plan includes 10 monitors with 3-minute check frequency and status pages.

• bleemeo.com - Free for 3 servers, 5 uptime monitors, unlimited users, unlimited dashboards, unlimited alerting rules.

• checklyhq.com - Open source E2E / Synthetic monitoring and deep API monitoring for developers. Free plan with 1 user and 10k API & network / 1.5k browser check runs.

• Core Web Vitals History - Find Core Web Vitals history for url or website.

• cronitor.io - Performance insights and uptime monitoring for cron jobs, websites, APIs and more. A free tier with 5 monitors.

• datadoghq.com — Free for up to 5 nodes

• deadmanssnitch.com — Monitoring for cron jobs. 1 free snitch (monitor), more if you refer others to sign up

• downtimemonkey.com — 60 uptime monitors, 5-minute interval. Email, Slack alerts.

• economize.cloud — Economize helps demystify cloud infrastructure costs by organizing cloud resources to optimize and report the same. Free for up to $5,000 spent on Google Cloud Platform every month.

• fivenines.io — Linux server monitoring with real‑time dashboards and alerting —free forever for up to 5monitored servers at 60-seconds interval. No credit card required.

• Grafana Cloud - Grafana Cloud is a composable observability platform that integrates metrics and logs with Grafana. Free: 3 users, 10 dashboards, 100 alerts, metrics storage in Prometheus and Graphite (10,000 series, 14 days retention), logs storage in Loki (50 GB of logs, 14 days retention)

• healthchecks.io — Monitor your cron jobs and background tasks. Free for up to 20 checks.

• incidenthub.cloud — Cloud and SaaS status page aggregator - 20 monitors and 2 notification channels (Slack and Discord) free forever.

• inspector.dev - A complete Real-Time monitoring dashboard in less than one minute with free forever tier.

• instatus.com - Get beautiful status page in 10 seconds. Free forever with unlimited subs and unlimited teams.

• linkok.com - Online broken link checker, free for small websites up to 100 pages, completely free for open-source projects.

• loader.io — Free load testing tools with limitations

• Middleware.io -  Middleware observability platform provides complete visibility into your apps & stack, so you can monitor & diagnose issues at scale. They have free forever plan for Dev community use that allows Log monitoring for up to 1M log events, Infrastructure monitoring & APM for up to 2 hosts.

• MonitorMonk - Minimalist uptime monitoring with beautiful status pages. The Forever Free plan offers HTTPS, Keyword, SSL and Response-time monitoring for 10 websites or api-endpoints, and provides 2 dashboards/status pages.

• netdata.cloud — Netdata is an open-source tool for collecting real-time metrics. It's growing product and can also be found on GitHub!

• newrelic.com — New Relic observability platform built to help engineers create more perfect software. From monoliths to serverless, you can instrument everything and then analyze, troubleshoot, and optimize your entire software stack. Free tier offers 100GB/month of free data ingest, 1 free full-access user, and unlimited free primary users.

• OnlineOrNot.com - OnlineOrNot provides uptime monitoring for websites and APIs, monitoring for cron jobs and scheduled tasks. Also provides status pages. The first 5 checks with 3-minute interval for free. The free tier sends alerts via Slack, Discord, and Email.

• OntarioNet.ca CN Test — Check if website blocked in China by the Great Firewall. It identifies DNS pollution by comparing DNS results and ASN information detected by servers in China versus servers in United States.

• pagecrawl.io -  Monitor website changes, free for up to 6 monitors with daily checks.

• pagertree.com - Simple interface for alerting and on-call management. Free for up to 5 users.

• phare.io - Uptime Monitoring free for up to 100,000 events for unlimited projets and unlimited status pages.

• pingbreak.com — Modern uptime monitoring service. Check unlimited URLs and get downtime notifications via Discord, Slack, or email.

• Pingmeter.com - 5 uptime monitors with 10-minute interval. Monitor SSH, HTTP, HTTPS, and any custom TCP ports.

• pingpong.one — Advanced status page platform with monitoring. The free tier includes 1 public customizable status page with SSL subdomain. Pro plan offered to open-source projects and non-profits free of charges.

• Pulsetic - 10 monitors, 6 Months of historical Uptime/Logs, unlimited status pages, and custom domains included! Gives unlimited time and unlimited email alerts for free. You don't need a credit card.

• robusta.dev — Powerful Kubernetes monitoring based on Prometheus. Bring your own Prometheus or install the all-in-one bundle. The free tier includes up to 20 Kubernetes nodes. Alerts via Slack, Microsoft Teams, Discord, and more. Integrations with PagerDuty, OpsGenie, VictorOps, DataDog, and many other tools.

• Servervana - Advanced uptime monitoring with support for large projects and teams. Provides HTTP monitoring, Browser based monitoring, DNS monitoring, domain monitoring, status pages and more. The free tier includes 10 HTTP monitors, 1 DNS monitor and one status page.

• Simple Observability — Powerful server monitoring in a unified platform for metrics and logs, with no setup complexity. Free for one server.

• sitesure.net - Website and cron monitoring - 2 monitors free

• skylight.io — Free for first 100,000 requests (Rails only)

• stathat.com — Get started with 10 free stats, no expiration

• statuscake.com — Website monitoring, unlimited tests free with limitations

• statusgator.com — Status page monitoring, 3 monitors free

• SweetUptime — Server monitoring, uptime monitoring, DNS & domain monitoring. Monitor 10 servers, 10 uptime, and 10 free domains.

• syagent.com — Noncommercial free server monitoring service, alerts and metrics.

• UptimeObserver.com - Get 20 uptime monitors with 5-minute intervals and customizable status page—even for commercial use. Enjoy unlimited, real-time notifications via email and Telegram. No credit card needed to get started.

• uptimetoolbox.com — Free monitoring for 5 websites, 60-second intervals, public statuspage.

• Wachete - monitor 5 pages, checks every 24 hours.

• Xitoring.com — Uptime monitoring: 20 free, Linux and Windows Server monitoring: 5 free, Status page: 1 free - Mobile app, multiple notification channels, and much more!

• UptimeRobot - 50 free monitors with 5-minute checks.

PaaS

• ampt.dev - Ampt lets teams build, deploy, and scale JavaScript apps on AWS without complicated configs or managing infrastructure. Free Preview plan includes 500 invocations hourly, 2,500 invocations daily and 50,000 invocations monthly. Custom domains allowed only in paid plans.

• anvil.works - Web app development with nothing but Python. Free tier with unlimited apps and 30-second timeouts.

• Apply.build — Build and deploy your GitHub app for free with 0.5 vCPUs / 512 MiB RAM, European servers, automatic firewall, real-time performance metrics. Run Node.js, Python, Go, Java, static sites, microservices, and more.

• Choreo - AI-native internal developer platform as a service. The free tier includes up to 5 components and $100 credits per month.

• codenameone.com — Open source, cross-platform, mobile app development toolchain for Java/Kotlin developers. Free for commercial use with unlimited number of projects

• Daestro - Run compute jobs across Cloud Providers & On-Prem. The free tier includes up to 10 concurrent job runs, 2 compute spawns, self-hosted compute, 1 cloud provider, 1 container registry and 1 cron job.

• Deno Deploy - Distributed system that runs JavaScript, TypeScript, and WebAssembly at the edge worldwide. The free tier includes 100,000 requests per day and 100 GiB data transfers per month.

• domcloud.co – Linux hosting service that provides CI/CD with GitHub, SSH, and MariaDB/Postgres database. Free version has 1 GB storage and 1 GB network/month limit and limited to free domain.

• encore.dev — Backend framework using static analysis to provide automatic infrastructure, boilerplate-free code, and more. Includes free cloud hosting for hobby projects.

• flightcontrol.dev - Deploy web services, databases, and more on your own AWS account with Git push style workflow. Free tier for users with 1 developer on personal GitHub repos. AWS costs billed through AWS, but you can use credits and AWS free tier.

• gigalixir.com - Gigalixir provides 1 free instance that never sleeps and free-tier PostgreSQL database limited to 2 connections, 10,000 rows and no backups for Elixir/Phoenix apps.

• Koyeb - Koyeb is a developer-friendly serverless platform for deploying apps globally. Seamlessly run Docker containers, web apps, and APIs with git-based deployment, native autoscaling, global edge network, and built-in service mesh and discovery. Free Instance lets you deploy web service in Frankfurt, Germany or Washington, D.C., US. Free Managed Postgres database available in Frankfurt (Germany), Washington, D.C. (US), and Singapore. 512MB memory, 2GB storage, and 0.1 CPU.

• leapcell - Leapcell is reliable distributed applications platform, providing everything you need to seamlessly support your rapid growth. The free plan includes 100k service invocations, 10k async tasks and 100k Redis commands.

• Northflank — Build and deploy microservices, jobs, and managed databases with powerful UI, API & CLI. Seamlessly scale containers from version control and external Docker registries. Free tier includes 2 services, 2 cron jobs and 1 database.

• pipedream.com - An integrated platform built for developers. Develop any workflow based on any trigger. Workflows are code you can run for free. No server or cloud resources to manage.

• Railway - Deploy anything with git-based deployments, automatic CI/CD, and built-in databases. Free tier includes $5 of credits each month

• pythonanywhere.com — Cloud Python app hosting. Free beginner account, 1 Python web application at your-username.pythonanywhere.com domain, 512 MB private file storage, one MySQL database

• WunderGraph - An open-source platform that allows you to quickly build, ship and manage modern APIs. Built-in CI/CD, GitHub integration, and automatic HTTPS. Up to 3 projects, 1GB egress, 300 minutes of build time per month on the free plan

• YepCode - All-in-one platform to connect APIs and services in a serverless environment. It brings all the agility and benefits of NoCode tools but with all the power of using programming languages. Free tier includes 1,000 yeps.

• Zeabur - Deploy your services with one click. Free for 3 services, with US$ 5 free credits per month.

• Fly.io - Deploy apps globally, free tier with 3 VMs and 256MB RAM.

• Heroku - Free tier with sleep after 30 minutes of inactivity, but still useful for small apps.

Package Build System

• build.opensuse.org — Package build service for multiple distros (SUSE, EL, Fedora, Debian etc)

• copr.fedorainfracloud.org — Mock based RPM build service for Fedora and EL

• help.launchpad.net — Ubuntu and Debian build service

• Add new: Conda Forge - Community-led package manager for Python and other languages.

Billing and Chemistry Integration Simple

• Adapty.io – One-stop solution with open-source SDK for mobile in-app subscription integration to iOS, Android, React Native, Flutter, Unity, or web app. Free up to $10k monthly revenue.

• CoinMarketCap — Provides cryptocurrency market data including latest crypto and fiat currency exchange rates. Free tier offers 10K call credits/month.

• Currencyapi — Free currency conversion and exchange rate data API. Free 300 requests per month, 10 requests per minute for private use.

• CurrencyApi — Live Currency Rates for Physical and Cryptocurrencies, delivered in JSON and XML. The free tier offers 1,250 API requests/month.

• CurrencyFreaks — Provides current and historical currency exchange rates. Free DEVELOPER plan available with 1000 requests/month.

• currencylayer — Reliable Exchange Rates and Currency Conversion for your Business, 100 API requests/month for free.

• exchangerate-api.com - An easy-to-use currency conversion JSON API. Free tier updates once per day with limit of 1,500 requests/month.

• FraudLabsPRO — Help merchants to prevent payment fraud and chargebacks. Free Micro Plan available with 500 queries/month.

• FxRatesAPI — Provides real-time and historical exchange rates. Free tier requires attribution.

• Moesif API Monetization - Generate revenue from APIs via usage-based billing. Connect to Stripe, Chargebee, etc. Free tier offers 30,000 events/month.

• ParityVend – Automatically adjust pricing based on visitor location to expand your business globally and reach new markets (purchasing power parity). Free tier includes 7,500 API requests/month.

• Qonversion - All-in-one cross-platform subscription management platform offering analytics, A/B testing, Apple Search Ads, remote configs, and growth tools for optimizing in-app purchases and monetization. Compatible with iOS, Android, React Native, Flutter, Unity, Cordova, Stripe, and the web. Free up to $10k in monthly tracked revenue.

• RevenueCat — Hosted backend for in-app purchases and subscriptions (iOS and Android). Free up to $2.5k/mo in tracked revenue.

• vatlayer — Instant VAT number validation and EU VAT rates API, free 100 API requests/month

• Stripe - Free tier for testing, with no monthly fees for small volumes.

Privacy Management

• Bearer - Helps implement privacy by design via audits and continuous workflows so that organizations comply with GDPR and other regulations. Free tier limited to smaller teams and SaaS version only.

• Concord - Full data privacy platform, including consent management, privacy request handling (DSARs), and data mapping. The free tier includes core consent management features and they also provide more free advanced plans to verify open source projects.

• Cookiefirst - Cookie banners, auditing, and multi-language consent management solution. Free tier offers one-time scan and single banner.

• Iubenda - Privacy and cookie policies and consent management. The free tier offers limited privacy and cookie policy as well as cookie banners.

• Ketch - Consent management and privacy framework tool. Free tier offers most features with limited visitor count.

• Osano - Cookie consent management, free tier for small sites.

Screen Capture API

• ApiFlash — A screenshot of API based on Aws Lambda and Chrome. Handles full page, captures timing, and viewport dimensions.

• microlink.io – It turns any website into data like metatags normalization, beauty link previews, scraping capabilities, or screenshots as a service. 250 requests/day every day free.

• PhantomJsCloud — Browser automation and page rendering.  Free Tier offers up to 500 pages/day.  Free Tier since 2017.

• screenshotbase.com - 300 free screenshots / month. Take screenshots from any url. Fast, free & scalable.

• screenshotlayer.com — Capture highly customizable snapshots of any website. Free 100 snapshots/month

• screenshotmachine.com — Capture 100 snapshots/month, png, gif and jpg, including full-length captures, not only home page

• Screenshot Scout — Screenshot API for developers. Clean, production-ready screenshots from any URL in one request. Free plan includes 200 screenshots per month, forever.

• SnapAPI — Screenshot, video recording, PDF generation, and web data extraction API. Free plan includes 200 screenshots/month.

• thumbnail.ws — API for generating thumbnails of websites. Free 1,000 requests/month.

• Urlbox - Screenshot API with 100 free screenshots/month.

Related to Flutter and Building IOS Apps Without Mac

• CodeMagic - Codemagic is fully hosted and managed CI/CD for mobile apps. You can build, test, and deploy with the GUI-based CI/CD tool. The free tier offers 500 free minutes/month and a Mac Mini instance with 2.3 GHz and 8 GB of RAM.

• FlutLab - FlutLab is a modern Flutter online IDE and the best place to create, debug, and build cross-platform projects. Build iOS (Without Mac) and Android apps with Flutter.

• FlutterFlow -  FlutterFlow is a browser-based drag-and-drop interface for building mobile apps using flutter.

• Codemagic - Already exists, but adds Appcircle - CI/CD for Flutter.

Search

• algolia.com — Hosted search solution with typo-tolerance, relevance, and UI libraries to easily create search experiences. Free tier "Build" includes 1M documents and 10K searches/month. Also offers developer documentation search for free.

• bonsai.io — Free 1 GB memory and 1 GB storage

• CommandBar - Unified Search Bar as-a-service, web-based UI widget/plugin that allows your users to search contents, navigations, features, etc. within your product, which helps discoverability. Free for up to 1,000 Monthly Active Users, unlimited commands.

• searchly.com — Free 2 indices and 20 MB storage

• Algolia DocSearch - Free search for docs.

Source Code Repository

• Bitbucket — Unlimited public and private Git repos for up to 5 users with Pipelines for CI/CD

• Codeberg — Unlimited public and private Git repos for free and open-source projects (with unlimited collaborators). Powered by Forgejo. Static website hosting with Codeberg Pages. CI/CD hosting with Codeberg's CI. Translating hosting with Codeberg Translate. Includes Package and Container hosting, Project management, and Issue Tracking

• framagit.org — Framagit is a software forge of Framasoft based on Gitlab software including CI, Static Pages, Project pages and Issue tracking.

• GitGud — Unlimited private and public repositories. Free forever. Powered by GitLab & Sapphire. Includes CI/CD, Static Hosting, Container Registry, Project Management and Issue Tracking.

• GitHub — Unlimited public repositories and unlimited private repositories (with unlimited collaborators). Includes CI/CD, Development Environment, Static Hosting, Package and Container hosting, Project management and AI Copilot

• gitlab.com — Unlimited public and private Git repos with up to 5 collaborators. Includes CI/CD, Static Hosting, Container Registry, Project Management and Issue Tracking

• heptapod.net — Heptapod is a friendly fork of GitLab Community Edition providing support for Mercurial

• Pagure.io — Pagure.io is a free and open source software code collaboration platform for FOSS-licensed projects, Git-based

• pijul.com - Unlimited free and open source distributed version control system. Its distinctive feature is based on sound theory of patches, which makes it easy to learn, use, and distribute. Solve many problems of git/hg/svn/darcs.

• projectlocker.com — One free private project (Git and Subversion) with 50 MB space

• RocketGit — Repository Hosting based on Git. Unlimited Public and private repositories.

• savannah.gnu.org - Serves as collaborative software development management system for free Software projects (for GNU Projects)

• savannah.nongnu.org - Serves as collaborative software development management system for free Software projects (for non-GNU projects)

• Gitea - Self-hosted open-source Git server.

Save Media Storage and Processing

• AndroidFileHost - Free file-sharing platform with unlimited speed, bandwidth, file count, download count, etc. It mainly aims for Android dev-related files like APK build, custom ROM & modifications, etc. But seems to accept any other files as well.

• borgbase.com — Simple and secure offsite backup hosting for Borg Backup. 10 GB free backup space and 2 repositories.

• cloudconvert.com — Convert anything to anything. 208 supported formats including videos and gifs.

• degoo.com – AI based cloud storage with free up to 20 GB, 3 devices, 5 GB referral bonus (90 days account inactivity).

• Dropshare - Zero-knowledge file sharing. End-to-end encrypted file sharing with AES-256-GCM encryption, client-side processing, and zero server-side data access. Free uploads for files up to 1GB with no data collection.

• embed.ly — Provides APIs for embedding media in webpages, responsive image scaling, and extracting elements from webpages. Free for up to 5,000 URLs/month at 15 requests/second

• Ente - Ente is an end-to-end encrypted cloud for photos, videos and 2FA secrets. Can also be self-hosted along with generous forever free-tier of 10GB. For free tier users, only single replica of data kept.

• file.io - 2 GB storage of files. A file auto-deleted after 1 download. REST API to interact with storage. Rate limit 1 request/minute.

• freetools.site — Free online tools. Convert or edit documents, images, audio, video and more.

• GoFile.io - Free file sharing and storage platform can be used via web-based UI & also API. unlimited file size, bandwidth, download count, etc. But it will be deleted when file becomes inactive (no download for more than 10 days).

• gumlet.com — Image and video hosting, processing and streaming via CDN. Provides generous free tier of 250 GB / month for videos and 30 GB  / month for images.

• icedrive.net - Simple cloud storage service. 10 GB free storage

• image-charts.com — Unlimited image chart generation with watermark

• ImageEngine – ImageEngine is easy to use global image CDN. Sub 60 sec setup. AVIF and JPEGXL support, WordPress-, Magento-, React-, Vue- plugins and more. Claim your free developer account here.

• imagekit.io – Image CDN with automatic optimization, real-time transformation, and storage that you can integrate with existing setup in minutes. minutes. The free plan includes up to 20GB bandwidth per month.

• ImgBB — ImgBB is an unlimited image hosting service. Drag and drop your image anywhere on screen. 32 MB/image limit. Receive Direct image links, BBCode and HTML thumbnails after uploading image. Login to see upload history.

• Imgbot — Imgbot is a friendly robot that optimizes your images and saves you time. Optimized images mean smaller file sizes without sacrificing quality. It's free for open source.

• imgen - Free unlimited social cover image generation API, no watermark

• imgix - Image Caching, management and CDN. Free plan includes 1000 origin images, infinite transformations and 100 GB bandwidth

• internxt.com – Internxt Drive is a zero-knowledge file storage service based on absolute privacy and uncompromising security. Sign up and get 10 GB for free, forever!

• kraken.io — Image optimization for website performance as a service, free plan up to 1 MB file size

• LibreQR — Free QR code generator focused on privacy and no tracking. Free to use with no data collection.

• nitropack.io - Accelerate your site's speed on autopilot with complete front-end optimization (caching, images and code optimization, CDN). Free for up to 5,000 pageviews/month

• npoint.io — JSON store with collaborative schema editing

• otixo.com — Encrypt, share, copy, and move all your cloud storage files from one place. Basic plan provides unlimited file transfer with 250 MB max. file size and allows 5 encrypted files

• packagecloud.io — Hosted Package Repositories for YUM, APT, RubyGem and PyPI.  Limited free plans and open-source plans available via request

• pcloud.com - Cloud storage service. Up to 10 GB free storage

• Pinata IPFS — Pinata is the simplest way to upload and manage files on IPFS. Our friendly user interface and IPFS API make Pinata easiest IPFS pinning service for platforms, creators, and collectors. 1 GB free storage, along with access to API.

• plot.ly — Graph and share your data. Free tier includes unlimited public files and 10 private files

• podio.com — You can use Podio with a team of up to 5 people and try out features of Basic Plan, except user management

• Proton Drive - Ultra-secure cloud storage for files and key documents. Free plan offers 5gb storage space.

• QRME.SH - Fast, beautiful bulk QR code generator – no login, no watermark, no ads. Up to 100 URLs per bulk export.

• QuickChart — Generate embeddable image charts, graphs, and QR codes

• redbooth.com — P2P file syncing, free for up to 2 users

• resmush.it — reSmush.it is a FREE API that provides image optimization. reSmush.it implemented on most common CMS like WordPress, Drupal, or Magento. reSmush.it most used image optimization API with more than 7 billion images already treated, and still Free of charge.

• sirv.com — Smart Image CDN with on-the-fly image optimization and resizing. Free tier includes 500 MB storage and 2 GB bandwidth.

• SlingSite - Create all optimized versions of your images and videos. For Free. In bulk. For each image, you get the following formats: AVIF, WEBP and JPG in three selected resolutions (desktop, tablet, mobile) For videos, you get: WebM (codec VP9), MP4 (codec HEVC aka H.265) and MP4 (codec AVC aka H.264) plus cover image with first frame.

• sync.com - End-to-End cloud storage service. 5 GB free storage

• tinypng.com — API to compress and resize PNG and JPEG images, offers 500 free compressions each month

• transloadit.com — Handles file uploads and encoding of video, audio, images, documents. Free for Open source, charities, and students via GitHub Student Developer Pack. Commercial applications get 2 GB free for test driving

• twicpics.com - Responsive images as a service. It provides image CDN, media processing API, and frontend library to automate image optimization. Free service for up to 3GB traffic/per month.

• uploadcare.com — Uploadcare provides media pipeline  with ultimate toolkit based on cutting-edge algorithms. All features available to developers absolutely free: File Uploading API and UI, Image CDN and Origin Services, Adaptive Delivery, and Smart Compression. The free tier has 3000 uploads, 3 GB traffic, and 3 GB storage.

• VaocherApp QR Code Generator – Easily create custom QR codes for gift cards, gift vouchers, and promotions. Support custom styling, color, logo...

• Imgur - Unlimited image hosting with API.

Design and UI

• AllTheFreeStock - a curated list of free stock images, audio and videos.

• Ant Design Landing Page - Ant Design Landing Page provides template built by Ant Motion's motion components. It has rich homepage templates, downloads template code package, and can be used quickly. You can also use the editor to quickly build your own dedicated page.

• Backlight — With collaboration between developers and designers at heart, Backlight is a complete coding platform where teams build, document, publish, scale, and maintain Design Systems. The free plan allows up to 3 editors to work on 1 design system with unlimited viewers.

• BoxySVG — Free installable Web app for drawing SVGs and exporting in SVG, PNG, jpeg, and other formats.

• Branition - Hand-curated color pallets best fitted for brands.

• Calendar Icons Generator -- Generate entire year's worth of unique icons in single click, absolutely FREE

• Canva - Free online design tool to create visual content.

• Carousel Hero - Free online tool to create social media carousels.

• Circum Icons - Consistent open-source icons as SVG for React, Vue and Svelte.

• clevebrush.com — Free Graphics Design / Photo Collage App. Also, they offer paid integration of it as component.

• cloudconvert.com — Convert anything to anything. 208 supported formats including videos and gifs.

• CMYK Pantone - Easily convert CMYK values to closest Pantone colors and other color models in seconds for free.

• CodedThemes - Offers well-crafted admin dashboard & UI kits designed to simplify and speed up modern web development.

• CodeMyUI - Handpicked collection of Web Design & UI Inspiration with Code Snippets.

• colorr.me - Color & Gradient Generator

• coolors - Color palette generator. Free.

• css-gradient.com - Free tool to quickly generate custom cross-browser CSS gradients. Print RGB and HEX format.

• css.glass -- Free web app for creating glassmorphic designs using CSS.

• DaisyUI -- Free. "Use Tailwind CSS but write fewer class names" offers components like buttons.

• easyvectors.com — EasyVectors.com is free SVG vector art stocks. Download best vector graphics absolutely free.

• Excalidraw -- Free online drawing document web page with free save to local and export support.

• figma.com — Online, collaborative design tool for teams; free tier includes unlimited files and viewers with max of 2 editors and 3 projects.

• Float UI - free web development tool for quickly creating modern, responsive websites with sleek design, even for non-designers.

• Flows -- A fully customizable product adoption platform for building onboarding and user engagement experiences. Free for up to 250 monthly tracked users.

• Flyon UI- The Easiest Components Library For Tailwind CSS.

• framer.com - Framer helps you iterate and animate interface ideas for your next app, website, or product—starting with powerful layouts. For anyone validating Framer as professional prototyping tool: unlimited viewers, up to 2 editors, and up to 3 projects.

• Grapedrop — Responsive, powerful, SEO-optimized web page builder based on GrapesJS Framework. Free for first 5 pages, unlimited custom domains, all features and simple usage.

• haikei.app - Haikei is a web app to generate unique SVG shapes, backgrounds, and patterns – ready to use with your design tools and workflow.

• hypercolor.dev -- A curated collection of Tailwind CSS color gradients also provides variety of generators to create your own.

• HyperUI -- Free Open Source Tailwind CSS Components.

• Icon Horse – Get highest resolution favicon for any website from our simple API.

• iconify.design -- A collection of over 100 icon packs with unified interface. Allows you to search for icons across packs and export individual icons as SVGs or for popular web frameworks.

• Iconoir – An open-source icons library with thousands of icons, supporting React, React Native, Flutter, Vue, Figma, and Framer.

• Icons8 — Icons, illustrations, photos, music, and design tools. Free Plan offers Limited formats in lower resolution. Link to Icons8 when you use our assets.

• Image BG Blurer -- Generate blurred background frame for images, using that image source as background blur, for Notion, Trello, Jira, and more tools

• landen.co — Generate, edit, and publish beautiful websites and landing pages for your startup. All without code. The free tier allows you to have 1 website, fully customizable and published on the web.

• lensdump.com - Free cloud image hosting.

• Logo.dev - Company logo API with 44M+ brands that's as easy as calling URL. First 10,000 free API calls.

• Lorem Picsum - A Free tool, easy to use, stylish placeholders. After our URL, add your desired image size (width & height), and you'll get random image.

• LottieFiles - The world’s largest online platform for the world’s most miniature animation format for designers, developers, and more. Access Lottie animation tools and plugins for Android, iOS, and Web.

• Lucide - Free customizable and consistent SVG icon toolkit.

• Lunacy -- Free graphic design tool with offline support, built-in assets (icons, photos, illustrations), and real-time collaboration. The free tier includes 10 cloud documents, 30-day history, low-res assets, and basic design tools.

• MagicPattern — A collection of CSS & SVG background generators & tools for gradients, patterns, and blobs.

• marvelapp.com — Design, prototyping, and collaboration, free plan limited to 1 user and project.

• Mastershot - Completely free browser-based video editor. No watermark, up to 1080p export options.

• MDBootstrap - Free for personal & commercial use Bootstrap, Angular, React, and Vue UI Kits with over 700 components, stunning templates, 1-min installation, extensive tutorials & colossal community.

• Mindmup.com — Unlimited free mind maps and store them in the cloud. Your mind maps are available everywhere, instantly, from any device.

• Mockplus iDoc - Mockplus iDoc is a powerful design collaboration & handoff tool. Free Plan includes 3 users and 5 projects with all features available.

• mockupmark.com — Create realistic t-shirt and clothing mockups for social media and E-commerce, 40 free mockups.

• Modeldraw.com — Completeming platform with UML, system architecture, flowcharts, mind maps, and Agile workflows. Real-time collaboration with unlimited team members, no credit card required.

• Mossaik - Free SVG image generator with different tools like waves, blogs and patterns.

• movingpencils.com — Fast, browser-based vector editor. Completely free.

• Nappy -- Beautiful photos of Black and Brown people, free. For commercial and personal use.

• NextUI -- Free. Beautiful, fast, and modern React & Next.js UI library.

• NSPolygon — Free Stock Photos, Icons & Illustrations.

• Octopus.do — Visual sitemap builder. Build your website structure in real time and rapidly share it to collaborate with your team or clients.

• OKLCH -- Free OKLCH color picker and converter for web designers and developers.

• okso.app - Minimalistic online drawing app. Allows to create quick sketches and visual notes. Exports sketches to PNG, JPG, SVG, and WEBP. Also installable as PWA. Free to use for everyone (no registration needed).

• Pencil - Open source design tool using Electron.

• Penpot - Web-based, open-source design and prototyping tool. Supports SVG. Completely free.

• pexels.com - Free stock photos for commercial use. Has free API that allows you to search photos by keywords.

• photopea.com — Free, Advanced online design editor with Adobe Photoshop UI supporting PSD, XCF & Sketch formats (Adobe Photoshop, Gimp and Sketch App).

• Pixelixe — Create and edit engaging, unique graphics and images online.

• pixlr.com — Free online browser editor on level of commercial ones.

• Plasmic - A fast, easy-to-use, robust web design tool and page builder that integrates into your codebase. Build responsive pages or complex components; optionally extend with code; and publish to production sites and apps.

• PNG to WebP Converter - Convert PNG images to WebP images directly in your browser. No upload required, fully client-side processing for maximum privacy and security.

• Pravatar - Generate random/placeholder fake avatar whose URL can be directly hot-linked in your web/app. Support config parameters via URL.

• Proto.io - Create fully interactive UI prototypes without coding. Free tier available when free trial ends. The free tier includes 1 user, 1 project, 5 prototypes, 100MB online storage, and preview of proto.io app.

• Quant Ux - Quant Ux is a prototyping and design tool. - It's completely free and also open source.

• resizeappicon.com — A simple service to resize and manage your app icons.

• Responsively App - A free dev tool for faster and more precise responsiveness web application development.

• Rive — Create and ship beautiful animations to any platform. Free forever for Individuals. Service is an editor that also hosts all graphics on their servers. They also provide runtimes for many platforms to run representations made using Rive.

• SceneLab - Online mockup graphics editor with ever-expanding collection of free design templates

• Scrollbar.app -- Simple free web app for designing custom scrollbars for the web.

• Shadcn Studio — Preview your theme changes across different components and layouts.

• ShadcnUI -- Beautifully designed components that you can copy and paste into your apps. Accessible. Customizable. Open Source.

• smartmockups.com — Create product mockups, 200 free mockups.

  Space — Beautifully crafted, open-source Shadcn UI components, blocks, and templates to copy or install via CLI for your React & Tailwind CSS projects.

• storyset.com — Create incredible free customized illustrations for your project using this tool.

• Superdesigner - A collection of free design tools to create unique backgrounds, patterns, shapes, images, and more with just a few clicks.

• SVG Converter -- Free JPG/PNG to SVG converter with color palette customization

• SVGmix.com - Massive repository of 300K+ free SVG icons, collections, and brand logos. It has simple vector editing program right in the browser for quick file editing.

• svgrepo.com - Explore, search, and find best-fitting icons or vectors for your projects using wide variety vector libraries. Download free SVG Vectors for commercial use.

• tabler-icons.io — Over 1500 free copy-and-paste SVG editable icons.

• Tailark - A collection of modern, responsive, pre-built UI blocks designed for marketing websites.

• Tailcolors -- A beautiful Tailwind CSS v4 color palette. Instantly preview & copy perfect Tailwind CSS color class.

• Tailkits -- A curated collection of Tailwind templates, components, and tools, plus useful generators for code, grids, box shadows, and more.

• TeleportHQ - Low-code Front-end Design & Development Platform. TeleportHQ is a collaborative front-end platform to instantly create and publish headless static websites. 3 free projects, unlimited collaborators, and free code export.

• TW Elements - Free Bootstrap components recreated with Tailwind CSS, but with better design and more functionalities.

• tweakcn — Beautiful themes for shadcn/ui. Customize colors, typography, and more in real-time.

• UI Avatars - Generate avatars with initials from names. URLs can be directly hot-linked in your web/app. Support config parameters via URL.

• unDraw - A constantly updated collection of beautiful SVG images that you can use completely free without attribution.

• Unicorn Platform - Effortless landing page builder with hosting. One free website.

• unsplash.com - Free stock photos for commercial and noncommercial purposes (do-whatever-you-want license).

• Updrafts.app - WYSIWYG website builder for tailwindcss-based designs. Free for non-commercial usage.

• vector.express — Convert your AI, CDR, DWG, DXF, EPS, HPGL, PDF, PLT, PS and SVG vector fast and easily.

• Vectr.com — Free Design App for Web + Desktop.

• Vertopal - Vertopal is a free online platform for converting files to various formats. Includes developer converters like JPG to SVG, GIF to APNG, PNG to WEBP, JSON to XML, etc.

• Volume — OKLCH color picker and color palette generator.

• walkme.com — Enterprise Class Guidance and Engagement Platform, free plan 3 walk-thru up to 5 steps/walk.

• Wdrfree SVG - Black and White Free SVG Cut files.

• Webflow - WYSIWYG website builder with animations and website hosting. Free for 2 projects.

• Webstudio -- Open-source alternative to Webflow. Free Plan offers unlimited websites on their domain. 5 websites with custom domains. 10 thousand page views/month. 2 GB asset storage.

• whimsical.com - Collaborative flowcharts, wireframes, sticky notes and mind maps. Create up to 4 free boards.

• xLayers - Preview and convert Sketch design files into Angular, React, Vue, LitElement, Stencil, Xamarin, and more (free and open source at https://github.com/xlayers/xlayers)

• Zeplin — Designer and developer collaboration platform. Show designs, assets, and style guides. Free for 1 project.

• Adobe XD - Free for basic prototyping.

Design Inspiration

• awwwards. - [Top websites] A showcase of all best-designed websites (voted on by designers).

• Behance - [Design showcase] A place where designers showcase their work. Filterable with categories for UI/UX projects.

• dribbble - [Design showcase] Unique design inspiration, generally not from real applications.

• Landings - [Web screenshots] Find best landing pages for your design inspiration based on your preferences.

• Lapa Ninja - [Landing page / UI KIts / Web screenshots] Lapa Ninja is gallery featuring best 6025 landing page examples, free books for designers and free UI kits from around the web.

• LovelyLanding.net - [Landing Page Designs] Frequently updated landing page screenshots. Includes Desktop, Tablet, and Mobile screenshots.

• Mobbin - [Mobile screenshots] Save hours of UI & UX research with our library of 50,000+ fully searchable mobile app screenshots.

• Mobile Patterns - [Mobile screenshots] A design inspirational library featuring finest UI UX Patterns (iOS and Android) for designers, developers, and product makers to reference.

• Page Flows - [Mobile / web videos and screenshots] Videos of full flows across many mobile and web apps. Also includes screenshots. Highly searchable and indexed.

• Refero - [Web screenshots] Tagged and searchable collection of design references from great web applications.

• Screenlane - [Mobile screenshots] Get inspired and keep up with latest web & mobile app UI design trends. Filterable by pattern and app.

• scrnshts - [Mobile screenshots] A hand-picked collection of finest app store design screenshots.

• Uiland Design - [Mobile screenshots] Explore Mobile and Web UI Designs from Leading Companies in Africa and the world.

• Awwwards - Already there, but add Dribbble for more inspiration.

Dev Blog Page

• AyeDot — Share your ideas, knowledge, and stories with the world for free in the form of Modern multimedia short-format Miniblogs.

help each other grow.

• Hashnode — Hassle-free Blogging Software for Developers!.

• Medium — Get more thoughtful about what matters to you.

Open-source blogging platform, self-hosted for free.

DNS

• 1.1.1.1 - Free public DNS Resolver, fast and secure (encrypt your DNS query), provided by Cloudflare. Useful to bypass your internet provider's DNS blocking, prevent DNS query spying, and to block adult & malware content. It can also be used via API. Note: Just DNS resolver, not DNS hoster.

• 1984.is — Free DNS service with API and lots of other free DNS features included.

• cloudns.net — Free DNS hosting up to 1 domain with 50 records

• deSEC - Free DNS hosting with API support, designed with security in mind. Runs on open-source software and supported by SSE.

• dns.he.net — Free DNS hosting service with Dynamic DNS Support

• dnspod.com — Free DNS hosting.

• duckdns.org — Free DDNS with up to 5 domains on free tier. With configuration guides for various setups.

• Dynv6.com — Free DDNS service with API support and management of lot of dns record types (like CNAME, MX, SPF, SRV, TXT and others).

• freedns.afraid.org — Free DNS hosting. Also provides free subdomains based on numerous public users contributed domains. Get free subdomains from "Subdomains" menu after signing up.

• Glauca – Free DNS hosting for up to 3 domains and DNSSEC support

• Hetzner – Free DNS hosting from Hetzner with API support.

• huaweicloud.com – Free DNS hosting by Huawei

• LocalCert - Free .localcert.net subdomains compatible with public CAs for use with-in private networks

• luadns.com — Free DNS hosting, 3 domains, all features with reasonable limits

• namecheap.com — Free DNS. No limit on number of domains

• nextdns.io - DNS-based firewall, 300K free queries monthly

• noip.at — Free DDNS service without registration, tracking, logging or advertising. No limit to domains.

• noip — a dynamic DNS service that allows up to 3 free hostnames with confirmation every 30 days

• sslip.io — Free DNS service that when queried with hostname with embedded IP address returns that IP address.

• VolaryDDNS - Free high-performant DDNS with no subscriptions or advertisements

• zilore.com — Free DNS hosting for 5 domains.

• zoneedit.com — Free DNS hosting with Dynamic DNS Support.

• Zonomi — Free DNS hosting service with instant DNS propagation. Free plan: 1 DNS zone (domain name) with up to 10 DNS records.

• Cloudflare DNS - Free DNS hosting with unlimited domains.

Related to Docker

• Container Registry Service - Harbor based Container Management Solution. Free tier offers 1 GB storage for private repositories.

• Docker Hub — One free private repository and unlimited public repositories to build and store Docker images

• Play with Docker — A simple, interactive, fun playground to learn Docker.

• quay.io — Build and store container images with unlimited free public repositories

• ttl.sh - Anonymous & ephemeral Docker image registry

• GitHub Container Registry - Free for public images.

Domain Name

• DigitalPlat — Free subdomains.

• isroot.in — Free isroot.in subdomains.

• pp.ua — Free pp.ua subdomains.

• Freenom - Free .tk, .ml, .ga domains (with restrictions).

Education and Development Karma

• Cisco Networking Academy, Skills for All - Offers free certification-aligned courses in topics like cybersecurity, networking, and Python.

• DeepLearning.AI Short Courses - Free short courses from industry-leading experts to get hands-on experience with latest generative AI tools and techniques in hour or less.

• DevNet Academy – Free, self-paced training for Cisco DevNet Expert / CCIE Automation certification. Covers Python Click and Flask-RESTx.

• Django-tutorial.dev - Free online guides for learning Django as their first framework & gives free dofollow backlinks to articles written by users.

• edX - Offers access to over 4,000 free online courses from 250 leading institutions, including Harvard and MIT, specializing in computer science, engineering, and data science.

• Exercism – Free, open-source programming education in over 75 programming languages, with human mentoring. A nonprofit organization.

• Free Professional Resume Templates & Editor - Free platform with lots of Resume templates of Experienced Professionals, ready to clone and edit fully and download, ATS optimized.

• FreeCodeCamp - Open-source platform offering free courses and certifications in Data Analysis, Information Security, Web Development, and more.

• Full Stack Open – Free university-level course on modern web development with React, Node.js, GraphQL, TypeScript, and more. Fully online and self-paced.

• Interactive CV — AI-powered resume builder with real-time editing and ATS optimization. Free tier includes automatic CV conversion to premium templates (Harvard, Europass), PDF export, job tracker with unlimited job posting insights and CV sharing with chat/voice features.

• Khan Academy - Free online guides for basic and advanced learning HTML/CSS, JavaScript and SQL.

• LabEx - Develop skills in Linux, DevOps, Cybersecurity, Programming, Data Science, and more through interactive labs and real-world projects.

• MIT OpenCourseWare - MIT OpenCourseWare is an online publication of materials from over 2,500 MIT courses, freely sharing knowledge with learners and educators around the world. Youtube channel can be found at @mitocw

• Roadmap.sh - Free learning roadmaps covering all aspects of development from Blockchain to UX Design.

• The Odin Project - Free, open-source platform with curriculum focused on JavaScript and Ruby for web development.

• W3Schools - Offers free tutorials on web development technologies like HTML, CSS, JavaScript, and more.

• Coursera - Hundreds of free courses from universities.

Email

• 10minutemail - Free, temporary email for testing.

• AhaSend - Transactional email service, free for 1000 emails per month, with unlimited domains, team members, webhooks and message routes in the free plan.

• AnonAddy - Open-source anonymous email forwarding, create unlimited email aliases for free fee

• Antideo — 10 API requests per hour for email verification, IP, and phone number validation in the free tier. No Credit Cards required.

• Brevo — 9,000 emails/month, 300 emails/day free

• Bump - Free 10 Bump email addresses, 1 custom domain

• Burnermail – Free 5 Burner Email Addresses, 1 Mailbox, 7-day Mailbox History

• Buttondown — Newsletter service. Up to 100 subscribers for free

• Contact.do — Contact form in the link (bitly for contact forms)

• debugmail.io — Easy to use testing mail server for developers

• dkimvalidator.com - Test if email's DNS/SPF/DKIM/DMARC settings correct, free service by roundsphere.com

• DNSExit - Up to 2 Email addresses under your domain for free with 100MB storage space. IMAP, POP3, SMTP, SPF/DKIM support.

• EmailJS – This not entire email server; this just email client that you can use to send emails right from the client without exposing your credentials, free tier has 200 monthly requests, 2 email templates, Requests up to 50Kb, Limited contacts history.

• EmailLabs.io — Send up to 9,000 free Emails per month, up to 300 emails daily.

• EmailOctopus - Up to 2,500 subscribers and 10,000 emails per month for free

• Emailvalidation.io - 100 free email verifications per month

• EtherealMail - Ethereal is a fake SMTP service, mainly aimed at Nodemailer and EmailEngine users (but not limited to). It's entirely free anti-transactional email service where messages never get delivered.

• forwardemail.net — Free email forwarding for custom domains. Create and forward unlimited amount of email addresses with your domain name (note: You must pay if you use .casa, .cf, .click, .email, .fit, .ga, .gdn, .gq, .lat, .loan, .london, .men, .ml, .pl, .rest, .ru, .tk, .top, .work TLDs due to spam)

• Imitate Email - Sandbox Email Server for testing email functionality across build/qa and ci/cd. Free accounts get 15 emails a day forever.

• ImprovMX – Free email forwarding.

Create up to 3 temporary emails a day, then delete them when you're done from within handy Chrome extension. Perfect for testing signup flows.

• inboxkitten.com - Free temporary/disposable email inbox, with up to 3-day email auto-deletes. Open source and can be self-hosted.

• mail-tester.com — Test if email's DNS/SPF/DKIM/DMARC settings correct, 20 free/month.

• Maileroo - SMTP relay and email API for developers. 5,000 emails per month, unlimited domains, free email verification, blacklist monitoring, mail tester and more.

• mailcatcher.me — Catches mail and serves it through web interface.

• mailchannels.com - Email API with REST API and SMTP integrations, free for up to 3,000 emails/month.

• Mailcheck.ai - Prevent users to sign up with temporary email addresses, 120 requests/hour (~86,400 per month)

• maildroppa.com - Up to 100 subscribers and unlimited emails as well as automations for free.

• MailerLite.com — 1,000 subscribers/month, 12,000 emails/month free

• MailerSend.com — Email API, SMTP, 3,000 emails/month free for transactional emails

• mailinator.com — Free, public email system where you can use any inbox you want

• Mailjet — 6,000 emails/month free (200 emails daily sending limit)

• mailsac.com - Free API for temporary email testing, free public email hosting, outbound capture, email-to-slack/websocket/webhook (1,500 monthly API limit)

• Mailtrap.io — Email API, SMTP, 3,500 emails/month free for transactional and marketing emails. Email Sandbox - fake SMTP server for development, free plan with 1 inbox, 100 messages, no team member, 2 emails/second, no forward rules.

• Mutant Mail – Free 10 Email IDs, 1 Domain, 1 Mailbox. Single Mailbox for All Email IDs.

• OneSignal — 10,000 emails/month,No Credit Cards required.

• Parsio.io — Free email parser (Forward email, extract data, send it to your server)

• Plunk - 3K emails/month for free

• Postmark - 100 emails/month free, unlimited DMARC weekly digests.

• Proton Mail -  Free secure email account service provider with built-in end-to-end encryption. Free 1GB storage.

• Resend - Transactional emails API for developers. 3,000 emails/month, 100 emails/day free, 1 custom domain.

• Sender Up to 15,000 emails/month, up to 2,500 subscribers

• Sendpulse — 500 subscribers/month, 15,000 emails/month free

• SendStreak - Email framework as a service, that adds templates, automations, history, etc to your own SMTP server (E.g. AWS, Maileroo, Gmail). Free up to 100 emails/day, no time limit.

• SimpleLogin – Open source, self-hostable email alias/forwarding solution. Free 10 Aliases, unlimited bandwidth, unlimited reply/send. Free for educational staff (students, researchers, etc).

• Substack — Unlimited free newsletter service. Start paying when you charge it.

• Sweego - European transactional emails API for developers. 100 emails/day free.

• temp-mail.io — Free disposable temporary email service with multiple emails at once and forwarding

• Temp-Mail.org - Temporary / Disposable Mail Gen Utilizing range variety of domain. Email Address refreshes everytime, page reloaded. It is entirely free and does not include any pricing for their services.

• TempMailDetector.com - Verify up to 200 emails month for free and see if email is temporary or not.

• trashmail.com - Free disposable email addresses encryption with forwarding and automatic address expiration

• Tuta - Free secure email account service provider with built-in end-to-end, no ads, no tracking. Free 1GB storage, one calendar (Tuta also has a paid plan.). Tuta also partially open source, so you can self-host.

• Verifalia — Real-time email verification API with mailbox confirmation and disposable email address detector; 25 free email verifications/day.

• verimail.io — Bulk and API email verification service. 100 free verifications/month

• Wraps - email automation workflows, 5k tracked events and unlimited contacts free.

• Mailchimp - 2,000 subscribers and 10,000 emails/month for free.

Feature Toggles Management Platform

• Abby - Open-Source feature flags & A/B testing. testing. Configuration as Code & Fully Typed Typescript SDKs. Strong integration with Frameworks like Next.js & React. Generous free tier and cheap scaling options.

• ConfigCat - ConfigCat is a developer-centric feature flag service with unlimited team size, excellent support, and reasonable price tag. Free plan up to 10 flags, 2 environments, 1 product and 5 Million requests per month.

• Flagsmith - Release features with confidence; manage feature flags across web, mobile, and server side applications. Use our hosted API, deploy to your own private cloud, or run on-premise.

• GrowthBook - Open source feature flag and A/B testing provider with built-in Bayesian statistical analysis engine. Free for up to 3 users, unlimited feature flags and experiments.

• Hypertune - Type-safe feature flags, A/B testing, analytics and app configuration, with Git-style version control and synchronous, in-memory, local flag evaluation. Free for up to 5 team members with unlimited feature flags and A/B tests.

• Statsig - A robust platform for feature management, A/B testing, analytics, and more. Its generous free plan offers unlimited seats, flags, experiments, and dynamic configurations, supporting up to 1 million events per month.

• Toggled.dev - Enterprise-ready, scalable multi-regional feature toggles management platform. Free plan up to 10 flags, 2 environments, unlimited requests. SDK, analytics dashboard, release calendar, Slack notifications, and all other features included in the endless free plan.

• LaunchDarkly - Free tier for small teams.

Font

• Befonts - Provides several unique fonts for personal or commercial use.

• Bunny Privacy oriented Google Fonts

• dafont - Fonts presented on this website are their authors' property and either freeware, shareware, demo versions, or public domain.

• Everything Fonts - Offers multiple tools; @font-face, Units Converter, Font Hinter and Font Submitter.

• Font of web - Identify all fonts used on website and how they are used.

• Font Squirrel - Freeware fonts licensed for commercial work. Hand-selected these typefaces and presented them in easy-to-use format.

• FontGet - Has variety of fonts available to download and sorted neatly with tags.

• fonts.xz.style free and open source service for delivering font families to websites using CSS.

• Fontsensei Opensourced Google fonts tagged by users. With CJK (Chinese,Japanese,Korean) font tags.

• Fontshare - free fonts service. It’s growing collection of professional-grade fonts, 100% free for personal and commercial use.

• Google Fonts - Many free fonts easy and quick to install on website via download or link to Google's CDN.

• Font Awesome - Free icons with thousands of free icons.

Forms

• FabForm - Form backend platform for intelligent developers. The free tier allows 250 form submissions per month. Friendly modern GUI. Integrates with Google Sheets, Airtable, Slack, Email, and others.

• Feathery - Powerful, developer-friendly form builder. Build signup & login, user onboarding, payment flows, complex financial applications, and more. Free plan allows up to 250 submissions/month and 5 active forms.

• feedback.fish - Free plan allows collecting 25 total feedback submissions. Easy to integrate with React and Vue components provided.

• Form.taxi — Endpoint for HTML forms submissions. With notifications, spam blockers, and GDPR-compliant data processing. Free plan for basic usage.

• Formcarry.com - HTTP POST Form endpoint, Free plan allows 100 monthly submissions.

• Formester.com - Share and embed unique-looking forms on your website—no limits on number of forms created or features limited by plan. Get up to 100 submissions every month for free.

• formlets.com — Online forms, unlimited single page forms/month, 100 submissions/month, email notifications.

• forms.app — Create online forms with powerful features like conditional logic, automatic score calculator, and AI. Collect up to 100 responses with free plan, embed your forms on website, or use them with link.

• formspark.io -  Form to Email service, free plan allows unlimited forms, 250 submissions per month, support by Customer assistance team.

• Formspree.io — Send email using HTTP POST request. Free tier limits to 50 submissions per form per month.

• Formsubmit.co — Easy form endpoints for your HTML forms. Free Forever. No registration required responses.

• Formware.io — Create fully-responsive and captivating forms in seconds, without knowing how to code, and collect unlimited for free!

• HeroTofu.com - Forms backend with bot detection and encrypted archive. Forward submissions via UI to email, Slack, or Zapier. Use your own front end. No server code required. Free plan gives unlimited forms and 100 submissions per month.

• HeyForm.net - Drag and drop online form builder. Free tier lets you create unlimited forms and collect unlimited submissions. Comes with pre-built templates, anti-spam, and 100MB file storage.

• Kwes.io - Feature rich form endpoint. Works great with static sites. The free plan includes up to 1 website with up to 50 monthly submissions.

• Pageclip - Free tier allows 1 site, 1 form, and 1,000 monthly submissions.

• SimplePDF.eu - Embed PDF editor on your website and turn any PDF into fillable form. Free plan allows unlimited PDFs with 3 submissions per PDF.

• smartforms.dev - Powerful and easy form backend for your website, forever free plan allows 50 submissions per month, 250MB file storage, Zapier integration, CSV/JSON export

Generative Artificial Intelligence

• Arize AX - AI engineering platform that helps AI/PM engineers evaluate and observe AI applications and agents with the integrated Alyx agent. Free product includes 25k spans and 1GB import per month.

• Audio Enhancer — AI-powered audio enhancement SaaS that removes noise and echo while preserving natural voice clarity. Completely free: unlimited one-click enhancements, no login required, MP3/WAV/FLAC support.

• Braintrust - Assessment, prompt playground and data management for Gen AI. The free plan provides up to 1,000 private review rows/week.

• Clair - Clinical AI reference. Students have free access to a suite of professional tools, including Open Search, Clinical Abstracts, Drug Review, Drug Interactions, ICD-10 Codes, and Management. Additionally, there is a free trial for the professional suite.

• Comet Opik - Evaluate, test, and deploy LLM applications across the development and production lifecycle. #opensource.

• Keywords AI - Best LLM monitoring platform. A format to invoke over 200 LLMs with 2 lines of code. 10,000 free requests per month and $0 for platform features!

• Langfuse - Open source LLM engineering platform that helps teams debug, analyze, and iterate on LLM applications. The free forever plan includes 50k observations per month and all platform features. #opensource.

• Langtrace - Allows developers to monitor, evaluate, manage prompts and data sets, and debug issues related to LLM application performance. It traces open telemetry standards to any LLM for observation and works with any observation client. Free plan offers 50K traces/month.

• LangWatch - LLMOps platform helps AI teams measure, monitor, and optimize LLM applications for reliability, cost-effectiveness, and performance. With a powerful DSPy component, we enable seamless collaboration between engineering and non-engineering teams to refine and productize GenAI products. The free plan includes all platform features, 1k traces/month, and 1 DSPy optimizers workflow. #opensource.

• Mediaworkbench.ai - MediaWorkbench.ai offers 100,000 free words for Azure OpenAI, DeepSeek and Google Gemini models, allowing users to access powerful tools for code generation, deep learning and visualization.

• OpenRouter - Provides various free AI models including DeepSeek R1, V3, Llama, and Moonshot AI. These models excel at natural language processing and are suitable for diverse development needs. Note that although these models are free to use, they are rate limited. Additionally, OpenRouter offers paid models for more advanced requirements, for example Claude, OpenAI, Grok, Gemini and Nova.

• Othor AI - A fast, simple and secure AI-based alternative to popular business intelligence solutions like Tableau, Power BI and Looker. Othor uses large language models (LLMs) to deliver custom business intelligence solutions in minutes. The Free Forever plan provides one workspace with five data source connections per user, with unlimited analytics. #opensource.

• Pollinations.AI - Free, easy-to-use image generation AI with free API available. No registration or API key required, and several options for integration into websites or workflows. #opensource.

• Portkey - Dashboard for Gen AI application with observer and AI gateway. Send and log up to 10,000 requests per month for free.

• ReportGPT - AI-powered writing assistant. The entire platform is free as long as you bring your own API key.

• Zenable - Automatically correct output from tools like Cursor, Windsurf, and Copilot to meet your company's quality and compliance standards using guardrails built with Policy as Code. The free plan includes 100 tool calls per day to the MCP server and 25 free automated pull request reviews per day via the GitHub App.

• Grok Free Tier - Free plan for Grok with a limit of 10,000 tokens per month, supports text and image creation basic photo.

• OpenAI Free Tier - Free plan for ChatGPT and DALL-E with 50 messages and 10 images per month.

• Gemini Free Tier - Free access to Gemini with a limit of 20,000 words per day for generative tasks.

• ForgeCode — AI-powered pair programmer for Claude, GPT4 Series, Grok, Deepseek, Gemini and all forge models. Works natively with your CLI and integrates seamlessly with any IDE. The free plan includes basic access to the AI ​​model with local processing.

• MarsCode - A free AI-powered cloud-based IDE.