Image to Base64 Converter
Convert images to Base64 encoding for embedding in CSS, HTML, or Markdown.
Supports PNG, JPG, GIF, SVG, WEBP, and ICO formats.
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Drag and drop an image here
or click to select a file
Supports PNG, JPG, JPEG, GIF, SVG, WEBP, ICO
When to use Base64 images
- -Small icons and logos (under 10KB)
- -Reducing HTTP requests for critical above-the-fold images
- -Email templates (images often blocked by email clients)
- -Single-file HTML documents or demos
- -CSS data URIs for background patterns
- -Large images (loses caching benefits, increases page size)
- -Images that need to be cached separately
- -Frequently updated images (cache invalidation)
- -When HTTP/2 is available (multiplexing reduces request overhead)
- -Images over 10-20KB (Base64 adds ~33% size overhead)
Note: Base64 encoding increases file size by approximately 33%. The browser must decode the Base64 string, which uses additional memory and CPU. For production websites, consider using actual image files with proper caching headers for images larger than 10KB.
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