User Agent Parser - Analyze User Agent Online

Analyze User Agent string to determine browser, OS, device

User Agent String

Sample User Agents

User Agent Parser Online - Free UA String Analysis

Tan Phat Digital's free online User Agent Parser tool helps you analyze User Agent strings in detail and accurately. Identify browser (Chrome, Firefox, Safari, Edge), browser version, operating system (Windows, macOS, iOS, Android, Linux), device type (Desktop, Mobile, Tablet), rendering engine (WebKit, Gecko), and detect bots/crawlers (Googlebot, Bingbot). Automatically detect the current browser's UA or enter any UA for analysis. UA samples are available for testing. Completely free, processed offline in the browser.

Outstanding features

Browser analysis: Chrome, Firefox, Safari, Edge, Opera and specific versions
Detect operating system: Windows 7/8/10/11, macOS, iOS, Android, Linux with version
Determine device type: Desktop, Mobile, Tablet with vendor and model (iPhone, iPad, Samsung...)
Detect rendering engine: WebKit, Gecko, Blink with version
Detect bots and crawlers: Googlebot, Bingbot, and other search engine bots
Visual flags: Mobile/Desktop, Bot/Human with color badges
Automatically detect User Agent of current browser
Sample UA available: Chrome Windows, Safari macOS, iPhone Safari, Googlebot for quick testing

What is User Agent and why is it necessary to analyze it?

User Agent (UA) is the text string that every browser sends to the web server in the HTTP request header. UA contains information about the browser, operating system, and device being used. Web developers need to analyze UA to: Responsive design - detect mobile to serve mobile-optimized content. Browser compatibility - detect old browsers to show warnings or polyfills. Analytics - users' browser/OS/device statistics. Bot detection - differentiate between real users and search engine crawlers. A/B testing - target specific browsers or devices. Debugging - reproduce bugs on specific browser/OS combinations. Security - detect suspicious UA patterns.

Benefits when used

  • •Debug browser-specific issues by specifying the exact browser and version
  • •Analyze traffic to know which browser/OS/device users use the most
  • •Detect bots and crawlers to behave differently than real users
  • •Test responsive design by simulating UA of mobile devices
  • •Verify bot access - ensure Googlebot can crawl your site
  • •Troubleshoot compatibility issues with specific browser versions
  • •Learn UA string structure to understand web development more deeply
  • •Copy UA for use in testing or development

Detailed instructions for using User Agent Parser

  1. 1When opening the tool, the current browser's UA is automatically detected and
  2. 2is displayed View analysis results: Browser (name + version), OS (name + version), Device (type + vendor + model), Engine
  3. 3See Flags: Mobile/Desktop badge and Bot/Human badge
  4. 4To parse another UA, paste the UA string into the textarea box
  5. 5Or click the Sample UA buttons (Chrome Windows, Safari macOS, iPhone Safari, Googlebot) to test
  6. 6Click
  7. 7to reset to the UA of the browser you are using
  8. 8Click
  9. 9to copy UA string to clipboard

Cooperate immediately with Mavis Digital

We not only design websites, but also help businesses build strong digital brands. Providing comprehensive website design services from design to SEO optimization. Please contact Mavis Digital immediately to create breakthrough, effective and sustainable technology solutions for your business in Ho Chi Minh.

Tools Developer Tools related

.env Generator

Create .envand.env.example file for project.

.gitignore Generator

Generate .gitignore for Node.js, Python, Java.

API Mock Generator

Create mock JSON data for API testing.

API Response Formatter

Format and analyze API response.

API Tester

Test REST API: GET, POST, PUT, DELETE.

Base Converter

Convert Binary, Hex, Base32.

Base64 Encoder

Base64 encoding/decoding.

Binary Converter

Convert Decimal, Binary, Hex.

Box Shadow Generator

Create visual CSS box-shadow.

Chmod Calculator

Calculate Linux file permissions.

Color Contrast

Check WCAG accessibility.

Color Generator

Generate random color palette.