Image to Base64

Drop an image and get a data URI, ready-to-paste CSS rule or <img> tag — the file never leaves your device.

Encoders & DecodersRuns in your browserFree, no sign-up

Options

Output as

Drop an image

Drop an image here

PNG, JPEG, SVG, WebP, GIF or AVIF

Base64 output

Output appears here as you type.

Ctrl + Enter to run

Frequently asked questions

Is my image uploaded anywhere?

No. The file is read by the browser's FileReader API and encoded locally — it is never sent over the network. That is the main reason to use an in-browser converter for anything that is not already public.

Should I inline images as Base64?

Only small ones. Base64 inflates a file by roughly 33%, and inlined data cannot be cached separately, so a large inlined image is re-downloaded with every HTML or CSS change. The usual guidance is to inline below about 2–4 KB — icons and tiny placeholders — and serve everything larger as a normal file.

Which formats work?

Any image your browser can read: PNG, JPEG, WebP, AVIF, GIF and SVG. SVG is a special case worth knowing — because it is text, it usually compresses better as URL-encoded SVG than as Base64.