AV-I13
Image ⇄ Base64
Turn an image into a Base64 data URI, or decode Base64 back into an image file.
● Runs on your device; nothing is uploadedHow to use it
- Choose Image → Base64 or Base64 → Image.
- To encode, drop an image and copy the Data URI, HTML, CSS or Markdown.
- To decode, paste Base64 text or a data URI and press Decode image.
- Check the detected type and press Download to save the file.
Limits
- Encode formats
- JPG, PNG, GIF, WebP, AVIF, BMP, SVG, ICO, TIFF, HEIC
- Encode file size
- 10 MB
- Decode input
- 20,971,520 characters
Features
- Outputs a data URI, plain Base64, HTML, CSS and Markdown
- Warns when an image over 100 KB would be inlined
- Accepts URL-safe Base64 and ignores whitespace
- Detects the real type from the bytes, not the declared MIME type
- Shows how much larger the Base64 text is than the file
For AI agents: avtools_image_base64
Loading the tool…