AppsFactory

Image to Base64 Converter

Convert images to Base64 strings and data URIs, or decode Base64 back to images

Drag & drop an image here, or click to browse

Supports PNG, JPEG, GIF, SVG, WebP

Image to Base64 Converter - Encode Images as Data URIs

Embedding images directly in your code eliminates extra HTTP requests and simplifies deployment for small assets like icons and logos. The Image to Base64 Converter turns any image file into a Base64-encoded data URI, ready to use in CSS, HTML, or JavaScript.

Features

  • Drag-and-drop upload - Drop an image file onto the tool or click to browse your file system
  • Multiple output formats - Get the raw Base64 string, a complete data: URI, a CSS background-image rule, or an HTML <img> tag
  • Format detection - Automatically identifies PNG, JPEG, GIF, SVG, WebP, and ICO formats and sets the correct MIME type
  • File size display - See the original file size alongside the encoded string length so you can judge whether inlining makes sense
  • Live image preview - The decoded image renders alongside the output so you can verify correctness
  • Batch processing - Convert multiple images at once and download the results as a text file
  • Copy to clipboard - One click copies your chosen output format

How to Use

  1. Upload an image by dragging it onto the tool or using the file picker.
  2. Select the output format you need: raw Base64, data URI, CSS rule, or HTML tag.
  3. Review the file size comparison to confirm that inlining the image is appropriate.
  4. Copy the result to your clipboard and paste it into your code.

Use Cases

  • Embedding small icons and logos directly in CSS to reduce HTTP requests
  • Including images in single-file HTML email templates
  • Storing thumbnail previews as strings in JSON configuration files
  • Converting SVG assets to inline data URIs for use in stylesheets

FAQ

When should I avoid Base64 encoding an image?

Base64 encoding increases file size by roughly 33 percent. For images larger than a few kilobytes, serving them as separate files with proper caching is usually more efficient. The tool displays the size comparison to help you decide.

Does this work with SVG files?

Yes. SVGs are detected and encoded with the image/svg+xml MIME type. For SVGs specifically, you can also use URL-encoded inline SVG as an alternative, which the tool supports as an additional output option.

Can I decode a Base64 string back to an image?

The tool includes a decode mode where you can paste a Base64 string or data URI and see the rendered image, which is handy for debugging embedded assets.