Image to Base64 Converter
Encode any image to Base64 string directly in your browser. Convert PNG, JPG, GIF, SVG, WebP to Data URI format for inline embedding in HTML img tags, CSS background images, or JavaScript. Try our interactive examples or upload your own files.
1When to use this tool?
2Features
- Convert PNG, JPG, GIF, SVG, WebP, ICO to Base64
- Generate Data URI for HTML img src attribute
- Export raw Base64 string for CSS background-image
- Interactive SVG examples to try without uploading
- Real-time preview with image dimensions
- Compare original file size vs Base64 encoded size
- 100% client-side processing—no server upload
3How to Use
- Upload an image file (PNG, JPG, GIF, SVG, WebP, ICO) or drag and drop.
- Or click an example icon to see how Base64 encoding works instantly.
- Choose output format: Data URI (with MIME type) or raw Base64 string.
- Copy the encoded string to clipboard or download as a text file.
FAQ
Q. Is this image to Base64 converter completely free?
A. Yes! Unlimited conversions with no sign-up, watermarks, or usage limits. 100% free forever.
Q. Are my images uploaded to any server?
A. Never. All Base64 encoding happens locally in your browser using JavaScript. Your images never leave your device.
Q. What's the difference between Data URI and Base64?
A. Data URI includes the MIME type prefix (data:image/png;base64,...) and works directly in img src or CSS url(). Raw Base64 is just the encoded string without the prefix.
Q. Why is the Base64 string larger than the original file?
A. Base64 encoding increases file size by approximately 33%. This is expected because Base64 represents binary data using only ASCII characters.