URL Encode and Decode

URL encoding, also called percent-encoding, replaces characters that are unsafe in a URL with a percent sign followed by their hex code, like a space becoming %20. Pick Encode to make text URL-safe or Decode to read an encoded string back, then paste and copy. It updates as you type.

Yes. It uses encodeURIComponent under the hood, which escapes reserved characters such as &, =, ?, /, and # along with spaces and non-ASCII letters. That means it is safe for encoding a single query-string value, where those characters would otherwise be read as separators.

Percent-encoding represents a space as %20, which is the correct form for a path or a query value. The plus sign for a space is a separate convention used only in the older application/x-www-form-urlencoded format, so this tool sticks with %20 to stay correct in general URLs.

If you decode something with a stray percent sign or an incomplete sequence like %E0, you get a clear note pointing at the problem instead of a broken result. That usually means a percent got in that was not part of a real escape, or a byte sequence was cut off.

No. Both directions run locally in your browser with no network requests, so the links and query values you work with never leave your device. Handy when a URL carries an API key or a token you would rather not expose.