Image to Base64 Converter

Convert images to Base64 strings and decode Base64 back into images instantly in your browser.

How to use Image to Base64 Converter

Upload image

Choose an image file to convert into a Base64 data URL.

Convert instantly

The image is converted to Base64 in your browser instantly.

Preview image

See a preview of the uploaded image before converting.

Decode Base64

Paste a Base64 string to preview and convert it back to an image file.

FAQ

Frequently asked questions

Why convert an image to Base64?

Base64 images can be embedded directly into HTML, CSS, and JSON, avoiding extra file requests.

Does the tool output a data URI?

Yes, you can copy the full data URI with the correct MIME type prefix ready for embedding.

Is image to Base64 conversion free?

Yes, completely free with no file size limits for reasonable images.

Is there a file size limit?

No hard limit, but very large images produce very long strings — compress first for embedding.

Does conversion happen locally?

Yes, your image is encoded in the browser and never uploaded to any server.