Base64 Image Encoder/Decoder

Convert images to Base64 and vice versa

Upload photos

Click to select image or drag and drop here

PNG, JPG, GIF, WebP

Base64 Output

Base64 Image Encoder/Decoder Online - Free Base64 Image Converter

Base64 Image Encoder/Decoder tool helps convert images to Base64 string and vice versa. Upload image to encode into Base64, or paste Base64 to decode into image. Copy Data URI to embed directly into HTML/CSS, copy CSS background-image code. Supports PNG, JPG, GIF, WebP. Offline processing, 100% secure.

Outstanding features

Encode image to Base64 string
Decode Base64 string to image
Support: PNG, JPG, JPEG, GIF, WebP
Copy pure Base64 string
Copy Data URI (data:image/...;base64,...)
Copy CSS background-image code
Download images from Base64
Display file information: name, size, type
Preview photos in real time
Offline processing, not uploaded to server

Why do we need Base64 Image?

Base64 encoding allows embedding images directly into HTML, CSS, or JSON without the need for a separate file. This is useful when: (1) Reduces HTTP requests - directly embedded thumbnails load faster; (2) Email templates - many email clients block external images; (3) Single-file applications - packs everything into one file; (4) API responses - returns images in JSON. However, Base64 increases the size by ~33%, so it should only be used for small images.

Benefits when used

  • •Reduce HTTP requests for small images
  • •Embed images in email templates
  • •Pack images into single HTML file
  • •Transmit images via JSON API
  • •No need for separate hosting for photos
  • •Security - completely offline processing

Instructions for using Base64 Image

  1. 1Tab
  2. 2: Click to upload image or drag and drop
  3. 3View Base64 output and copy in the required format: Base64, Data URI, or CSS
  4. 4Tab
  5. 5: Paste Base64 string or Data URI
  6. 6See image preview and download if needed

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