URL Encoder / Decoder

Percent-encode text for a URL, a query value or a full URI, and decode %XX back to readable text. UTF-8 safe.

Input

Output

Ready.

Query string builder

One key=value per line. Values are encoded as components, so spaces and & are safe.

Query

Encode component — for one value inside a URL: encodes &, =, ?, /, spaces, plus signs. Use this for query values and path segments.
Encode full URI — for a whole URL whose structure (://, /, ?, &) you want to keep. Only characters that are illegal in a URI get encoded.
Decode — accepts both %20 and + as space, because most server frameworks treat + in query strings as a space.

Invalid percent sequences are reported instead of silently mangled.