URL Encoder

Percent-encode or decode text with both encodeURIComponent and encodeURI, plus a query-string table.

How to use

Paste text or a full URL, choose encode or decode, then press Go. Both encodeURIComponent and encodeURI results are shown, and any query string is broken out into a key and value table.

FAQ

encodeURIComponent escapes reserved characters such as & and =, which is what you want for a single parameter value, while encodeURI leaves URL structure intact, which is what you want for a whole address. Malformed percent sequences are reported instead of silently mangled.

Privacy: every calculation runs inside your browser. Your files and text never leave your device.