Image to Base64
Convert images to Base64 encoded strings for embedding in HTML/CSS.
How to Use
Upload image
Select or drag an image file.
Get Base64
View the Base64 encoded string.
Copy result
Copy data URI or raw Base64.
Features
Frequently Asked Questions
You can convert PNG, JPEG, GIF, WebP, SVG, BMP, and ICO images to Base64. All common image formats are supported.
Convert images to Base64 encoded strings for embedding directly in HTML, CSS, or JavaScript. Eliminate additional HTTP requests by including small images inline in your code.
Did You Know?
Data URLs (which use Base64 encoding) were first proposed in 1998 and standardized in RFC 2397. While they save HTTP requests, browsers can't cache data URLs like regular images, so they're downloaded fresh on every page load!
Pro Tips
- Only use for small images (<10KB) - larger files bloat your code
- Data URLs work in img src, CSS background-image, and more
- Base64 adds ~33% to file size, so calculate the trade-off carefully
Common Use Cases
- Embedding icons in CSS for single-file styling
- Creating self-contained HTML email templates
- Reducing HTTP requests for performance
- Including images in JSON APIs
- Building offline-capable web apps
Best Practices
- Optimize images before converting to minimize Base64 string length
- Consider SVG for icons instead - they're often smaller as text
- Include proper MIME type in the data URL prefix
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