URL Decode
Strictly decode percent escapes as UTF-8. Component mode retains literal +; form mode turns + into a space. Decoded URLs are never opened.
Conversion runs only in this browser. Input and output are not uploaded.
Input size: 0 B.
How this converter works
The decoder validates every percent escape and then performs strict UTF-8 URI-component decoding.
- Component mode retains literal plus signs.
- Form mode converts plus signs to spaces before decoding.
- Malformed escapes and invalid UTF-8 fail without partial output.
Frequently asked questions
Will a decoded URL open?
No. Decoded output remains plain text.
Why does % fail?
A percent sign must be followed by exactly two hexadecimal digits.
Using this tool
Decode a URL component
Strictly decode percent-encoded UTF-8 in component mode or form-value mode.
Input and output
Example: `%2B` becomes `+`; a literal `+` stays plus in component mode and becomes a space in form mode.
Important behaviour
Malformed percent escapes and invalid UTF-8 produce an error instead of partial decoded output.
Keep in mind
Decoded text is displayed as text; it is never navigated to by this page.
Conversion is performed in the browser. Copying or downloading happens only when you choose those actions.