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Image to Base64 Converter

Convert images to Base64 data URIs for embedding in HTML, CSS, or JavaScript — no external requests needed. Processed entirely in your browser.

Upload images to convert to Base64

Supports JPG, PNG, WebP, GIF, SVG · Max 10 MB each · Click to add more

Processed locally — no uploads to any server

What is a Base64 image?

A Base64-encoded image is a text representation of binary image data. Instead of referencing an external file, you embed the image directly into your HTML, CSS, or JavaScript using a data URI (data:image/png;base64,…).

When to use Base64 images

  • Embedding small icons in CSS to eliminate HTTP requests
  • Inlining images in HTML email templates
  • Storing image data in JSON or databases
  • Loading images in environments without file system access

Note: Base64 encoding increases file size by ~33%. For large images, prefer regularsrc URLs.