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Developer
URL Encode and Decode
Encode text so it’s safe inside a URL or query string, or turn %20s and %C3%A9s back into readable text. Paste a whole URL to see its host, path and every query parameter decoded in a table.
Loading URL Encode and Decode…
Runs on your device. Nothing you paste is uploaded.
How to use the URL Encode and Decode
- Choose Encode or Decode.
- Paste the text or URL. Pick whether you’re encoding a single value or a whole URL, and whether spaces should become + as in HTML forms.
- Copy the result. For a full URL, the table below lists each query parameter decoded.
Private by design
Plenty of online tools send what you paste to their server, which is a real risk with API keys, tokens and customer data. URL Encode and Decode runs entirely in your browser: nothing is uploaded, logged or stored, and it keeps working with your network switched off. It’s free, with no account and no limits.
Questions
What’s the difference between encoding a value and a whole URL?
A value, like a search term, has every reserved character encoded, including / ? & and =, so it can’t break the URL around it. A whole URL keeps those characters, because they give the URL its structure, and only encodes spaces and other unsafe characters.
Should a space be %20 or +?
%20 is correct anywhere in a URL. + means a space only in query strings sent by HTML forms (application/x-www-form-urlencoded). The decoder can treat + as a space when you ask it to.
Why did decoding fail?
A % must be followed by two hexadecimal digits, and the bytes have to form valid UTF-8. A lone % or a cut-off sequence like %E2%82 can’t be decoded; the message says where the problem is.
Is anything I paste sent to a server?
No. Every tool runs in your browser, so tokens, keys, customer data and code stay on your device. Once the page has loaded, the tools work offline too.
Do I need an account?
No. Every developer tool is free to use without signing in, with no limits.
Related tools
- Base64 Encode and Decode Convert text or files to Base64 and back, with URL-safe output.
- HTML Entity Encoder Escape text for HTML with entities like &, or decode them.
- JWT Decoder Read a JSON Web Token’s header and claims, and check its signature.
- Regex Tester Test a regular expression live, with matches, groups and replace.
Part of Developer Tools
16 free developer tools that run in your browser: format JSON, decode JWTs, test regex, compare text and encode Base64 without sending anything to a server.
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