Image to Base64 Converter

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Preview

Image preview will appear here

Base64 Data URL

About this Tool

This tool converts an image file from your computer into a Base64-encoded Data URL. This format can be directly embedded in HTML or CSS files, which can be useful for reducing HTTP requests for small icons and images, solving performance issues in web pages.

How does it work? Uploads image, reads as data URL via FileReader, which includes Base64.

  1. Click the "Upload an image" button and select an image file from your device.
  2. An image preview will appear on the left.
  3. The corresponding Base64 Data URL will be generated and displayed on the right.
  4. Click the "Copy" button to copy the entire Base64 string.
  • Embedding logos in email signatures.
  • Inlining images in CSS for faster loads.
  • Storing images in JSON for apps.
  • Works with common image formats like PNG, JPEG, GIF, and SVG.
  • Provides an instant preview of the uploaded image.
  • Generates a complete Data URL, ready for use in `src` or `url()` attributes.

Data URLs (RFC 2397) embed resources inline. Base64 encodes binary to text, allowing image data in URLs like data:image/png;base64,...

Why use Data URLs?

Reduces server requests for small files.

Size increase?

Yes, 33% overhead.

Browser support?

Universal for modern browsers.

All calculations and data processing for this tool are performed locally in your browser. We do not send any of your data to our servers, ensuring your information remains private and secure.