Query-string decoding
text = Hello+world+%26+moreplus = space
Result: Hello world & more
URL Decoder
Convert percent-encoded text (like %20 for a space) back to its original form. By default a + is treated as a space, matching query-string conventions; turn that off to keep + literal. Malformed sequences are reported clearly. Runs entirely locally.
Privacy: this tool processes your data entirely in your browser. Nothing you paste or type is sent to the server.
Enter your values and press Calculate — the result appears here.
Worked examples
Percent sequences
text = caf%C3%A9%20au%20laitplus = literal
Result: café au lait
Frequently asked questions
Why does + sometimes become a space?
In query strings (the part after ?), + historically means a space. In the path part of a URL, + is a literal plus. Choose the option that matches where your text came from.
What happens if the encoding is malformed?
A % that is not followed by two hex digits is invalid. The tool reports the error instead of silently producing wrong output.
Is decoding done locally?
Yes — everything runs in your browser. Nothing you paste is sent to a server.
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