Image to Base64 Converter

Convert any image to a Base64 data URL for use in CSS, HTML or JSON. Free online image to Base64 converter.

Your image is processed locally in your browser and is never uploaded.

How to use Image to Base64

Select an image file.
Convert to Base64 / data URL.
Copy the resulting string into your code or CSS.
Keep payloads small—large images produce very long strings.

How it works

The file is read locally and encoded as a Base64 data URL (for example data:image/png;base64,...). That string can embed the image without a separate HTTP request.

Best for small icons; large photos bloat HTML/CSS.

Examples

A small PNG icon becomes a data:image/png;base64,... string.
JPEG sources use data:image/jpeg;base64,...
Very large images may slow the browser while encoding.

Image to Base64 FAQ

Can I use the result in CSS background-image?

Yes. Use url("data:image/...;base64,...") with the generated string.

Is the image uploaded?

No. Encoding happens in your browser.

Is the Image to Base64 tool free?

Yes.