URL-decode UTF8
Quickly URL-unescape previously URL-escaped UTF8 strings. Runs entirely in your browser, so your data never leaves your device.
0 chars · 0 lines
Output
The result appears here as you type.
How to use URL-decode UTF8
- 1. Paste the encoded string. Enter the percent-encoded text, such as a%20b%26c%20%C3%A9. Multi-byte UTF-8 sequences like %C3%A9 are decoded back into the correct character.
- 2. Decide how to treat plus signs. Turn on Treat '+' as a space if the source used the older application/x-www-form-urlencoded convention where a literal plus sign represents a space instead of %20.
- 3. Copy the decoded text. Copy the readable result out of the output pane, for example a b&c é, and use it wherever you need the original text instead of its escaped form.
When to use URL-decode UTF8
URL-decode UTF8 reverses percent-encoding, turning sequences like %20 and %C3%A9 back into spaces and accented characters. It correctly reassembles multi-byte UTF-8 sequences instead of decoding each percent-escape as an isolated byte.
- Reading a query string from a network log. A server access log shows a request URL with percent-encoded parameters containing names or search terms with accented letters. Decoding it here reveals the actual text a user submitted.
- Debugging a form submission encoding. A form field was submitted as application/x-www-form-urlencoded and the raw value uses plus signs for spaces. Turning on the plus-as-space option decodes it back to the original readable text.
- Inspecting a shared link's parameters. Someone sent you a link with a long percent-encoded query parameter and you want to see what value it actually carries before clicking or reusing it.
Examples
Unescape
Input
a%20b%26c%20%C3%A9
Output
a b&c é
About the URL-decode UTF8 tool
URL-decode UTF8 runs as plain JavaScript in your browser tab, with no server behind it. Quickly URL-unescape previously URL-escaped UTF8 strings. Whatever you put in stays on your device from start to finish.
The tool is part of EditSafely's UTF-8 Tools section, 69 single-purpose utilities built around the same idea: open the page, get the result, keep your data to yourself.
You can shape the output with the Treat '+' as a space setting, and the result refreshes the moment you change it. A worked example further down the page shows exactly what the tool produces for a real input.
That local-first design has practical benefits beyond privacy. The tool keeps working on a flaky connection once the page has loaded, results are instant because nothing round-trips to a server, and it is safe to use with confidential material.
Frequently asked questions
Is URL-decode UTF8 free to use?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Is it safe to paste sensitive or confidential data?
Everything happens locally. Your browser downloads the tool's code once, then does all the processing itself; nothing you enter is transmitted, stored or logged. You can even go offline after the page loads and it will still work.
How much text can I process at once?
There is no fixed limit. Because the work happens on your own device rather than on a shared server, the practical ceiling is your machine's memory, which comfortably handles inputs far larger than typical online tools allow.
Do I need to sign up or install anything?
No. The tool works in any modern browser on desktop, tablet or phone. There is no account to create, no extension to add and no software to install.
How do I use the result?
The output panel has a one-click copy button, and you can keep refining the input while you work; the result updates in place as you type.