Image to Base64

About Image to Base64

An image to Base64 converter encodes an image as a Base64 data URI so you can embed it directly in HTML, CSS, or Markdown without a separate file. Drop in a PNG, JPEG, WebP, GIF, or SVG and copy the data URI or a ready-made CSS background or <img> snippet. Encoding happens in your browser, so your image is never uploaded.

Frequently asked questions

How do I use a Base64 image as a CSS background?

Encode the image, then switch the output to CSS — the tool gives you a ready-to-paste background-image: url("data:image/...;base64,...") rule. Inlining like this saves an HTTP request, which is worth it for small icons and backgrounds.

Can I convert Base64 back to an image here?

No — this tool only encodes an image file into Base64. It doesn't decode a Base64 string back into an image file. To go the other way you'd need a separate Base64-to-image decoder.

Which image formats can I encode?

Common web formats — PNG, JPEG, WebP, GIF, and SVG. The data URI carries the original format, so a PNG stays a PNG once embedded.

When should I inline an image as Base64?

For small images and icons, inlining avoids an extra network request. For large images it's usually better to keep a separate file, since Base64 adds roughly 30% to the size and can't be cached on its own.

Is my image uploaded anywhere?

No. The image is read and encoded locally in your browser and never sent to a server.