Convert Image to Base64 Online — Fast Data URI Generator

Encode images to Base64 strings online. Generate ready-to-use HTML img tags, CSS background-image code, and JSON payload strings.

✓ Converts PNG, JPG, WebP, and SVG files into Base64 Data URLs instantly

✓ Generates copy-ready snippets for HTML <img>, CSS url(), and JSON fields

✓ Displays precise file size comparison before and after Base64 encoding

✓ 100% private local browser encoding

How It Works

  1. Drop your image file into the dropzone.
  2. The FileReader API reads the file as an ArrayBuffer and converts it to Base64.
  3. Choose your preferred output format (Data URI, Raw Base64, HTML, or CSS).
  4. Copy the output string directly to your clipboard.