URL encode & decode

Safely encode query pieces, or decode them back to readable text.

Encode or decode query text with encodeURIComponent or encodeURI.

Local · no upload

Work area

Mode

Input

Result

Component mode encodes reserved characters. Full URI mode leaves them intact. + becomes a space when decoding in component mode.

Limits & privacy

Input up to 500,000 characters. Invalid percent-sequences fail decode instead of silent repair.
Local only — nothing is uploaded.

How do I use it?

Paste a string, then encode or decode.

Is anything uploaded?

Everything runs locally in your browser and is not uploaded.

How is this different?

Base64 targets binary; URL encoding targets URL characters.