URL Decoder
Decode a URI-component-encoded string back to readable text. Malformed % sequences show a position when possible.
Result
Paste an encoded string to decode.
How to decode a URL string
- Paste a percent-encoded string.
- Click Decode.
- Valid sequences become readable text.
- Incomplete %HH sequences show an error with a position when possible. + is not treated as a space.
FAQ
- Every % must be followed by two hex digits (0-9, A-F). Truncated sequences like %2 or non-hex like %ZZ fail with a position hint.
- No. This decoder uses decodeURIComponent, so + stays as +. Use %20 for spaces, or convert + to %20 first if you have form-urlencoded data.
- No. Decoding runs entirely in your browser.
- Paste a percent-encoded component or substring. A complete https:// URL often decodes fine, but this tool uses decodeURIComponent semantics — reserved characters in the path may need component-level decoding instead.
- JavaScript decodeURIComponent expects %HH hex pairs, not legacy %u Unicode escapes. Convert %uXXXX to UTF-8 percent encoding first, or paste standard %HH sequences.
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