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Base64 / URL Encoder

Encode or decode Base64 and URL text, with full Unicode support.

Format
Direction
INPUT: 0 chars / 0 bytesOUTPUT: 0 chars / 0 bytes

Ready when you are.

Converts a file up to 2 MB to a Base64 data: URI. You can also drop a file on the input.

Base64URL drops padding and uses - and _ so it's safe in URLs and JWTs. URL component escapes every reserved character, such as & = / ?; Full URL keeps them so the link still works. Decoding treats + as a literal plus, not a space. Everything runs in your browser.

Your inputs stay in this browser. These tools do not upload your text or colors.

CAT SETTINGS
HIDDEN SIGNAL

Some familiar corners may glitch into something unexpected.

Signal idle--
PIXEL DETAIL

Applied to every cat portrait.