Support: URL Encoder and Decoder

Tell us what happened. Include which page you were on and what you expected to see. Most answers go out within a business day.

Common questions

What is URL encoding?

Writing characters that are not allowed or have a special meaning in a web address as a % sign and two hexadecimal digits for each byte: a space is %20, é is %C3%A9.

Should I encode a value or the whole URL?

Encode a value when it goes inside a link, such as a search term in ?q=, so its & or = cannot break the link. Encode a whole URL when you have an address with spaces or accents that should still work as a link.

Why is a space sometimes + and sometimes %20?

HTML forms send spaces as + in the query string; elsewhere in an address a space is %20. Choose Form data for the + style. When decoding, Form data turns + back into spaces.

What is double encoding?

Encoding text that is already encoded, so %20 becomes %2520. The whole URL mode leaves existing codes alone to avoid it.

Why does decoding leave some % signs?

A % that is not followed by two valid hex digits, such as 50% off, is not a code. It is left as it is and pointed out.

Can it read the parameters of a tracking link?

Yes. Paste the link and each query parameter is listed and decoded under the result.

Is it free?

Yes, completely free, with no sign-up.