When to use url encoder and decoder
Query parameter values may contain spaces, ampersands and non-ASCII characters that need percent encoding. The Encode action uses encodeURIComponent for one value, not for an entire URL with separators. Decode reverses valid percent escapes. This distinction helps avoid breaking a URL by encoding its question mark and slashes unintentionally.
How it works
- Paste one parameter value or encoded component.
- Choose Encode or Decode.
- Copy the transformed text.
Try this example
hello world & coffee
Before you export or rely on the result
A plus sign is kept as a plus sign; this is not an application/x-www-form-urlencoded parser. Malformed percent escapes produce an error.
Does this tool upload my input?
No. This tool processes input in your browser. Optional advertisements are separate third-party content and load only when you allow ads. See the privacy notice for hosting logs and advertising details.
Can I use the result without creating an account?
Yes. URL Encoder and Decoder is free to use without an account. Review the result against the limits above and the requirements of the app or document where you plan to use it.