URL Decoder — Free Online Tool
Decode percent-encoded URL strings back into plain, readable text.
About URL Decoder
The URL Decoder converts percent-encoded URL strings back into plain, readable text. Whenever you see sequences like %20, %2F, or %3D in a link, query string, or API response, this tool restores them to the spaces, slashes, and equals signs they represent.
It uses the standard decodeURIComponent behavior and correctly handles UTF-8 encoded international characters, and it warns you clearly when the input is malformed. Everything is processed locally in your browser, so your data stays private and the decoded result is ready to copy instantly.
How to Use URL Decoder
- Paste a percent-encoded URL string into the input box.
- Click 'Decode' to convert it back to readable text.
- Review the decoded output in the result box.
- Click 'Copy Result' to copy the plain text.
Key Features
Decodes percent-encoded characters back to plain text
Correctly restores UTF-8 international characters and emoji
Clear error message when the input is malformed
One-click copy and clear controls
100% client-side processing with no uploads or limits
Frequently Asked Questions
What does URL decoding do?
URL decoding converts percent-encoded sequences such as %20 and %3D back into their original characters, like spaces and equals signs. It reverses the encoding used to make text safe inside URLs and query strings.
How is this different from the URL Encoder?
The URL Encoder turns readable text into percent-encoded form, while this decoder does the opposite, restoring the original characters. Use them together when inspecting or building links.
What happens if the input is not valid?
If the string contains malformed percent sequences, decodeURIComponent cannot process it, so the tool clears the output and shows an alert asking you to check the input.
Does it handle Unicode characters?
Yes. Percent-encoded UTF-8 bytes are decoded back into the correct international characters and emoji, so multilingual URLs decode accurately.
Is my input uploaded anywhere?
No. Decoding runs entirely in your browser, so the text you paste stays on your device and there are no usage limits.