Developer Tools
URL Encoder / Decoder
Percent-encode text for URLs or decode %20-style strings back to readable text.
About this tool
URLs cannot contain spaces or special characters, so they get percent-encoded: a space becomes %20, & becomes %26. Encode any text for safe use in query strings, or decode a mangled URL back into something readable.
Everything runs locally in your browser — nothing is uploaded, logged or stored.
How to use
- Paste the text or encoded string.
- Click URL-encode or URL-decode.
- Copy the result.
Frequently asked questions
Whenever user text goes into a URL — search queries, redirect targets, UTM values. Unencoded &, ? or spaces break the URL structure.
The percent-encoding of a space. + also means space, but only inside query strings.
A stray % not followed by two hex digits makes the string malformed — the tool flags this instead of guessing.