URL Encoder/Decoder

Safely encode text for use in URLs or decode URL-encoded strings. Supports standard percent-encoding.

What is URL Encoding?

URL encoding (Percent-encoding) converts characters into a format that can be transmitted over the Internet. URLs can only be sent over the Internet using the ASCII character-set. Since URLs often contain characters outside the ASCII set, the URL has to be converted into a valid ASCII format.

How it works

Unsafe ASCII characters are replaced with a "%" followed by two hexadecimal digits. For example, a space becomes %20.

When to use this tool?

• Query Parameters: Encoding values in URL query strings (e.g. ?query=hello world becomes ?query=hello%20world).
• Debugging: Decoding long, complex URLs to read their parameters.
• Security: Ensuring data injected into URLs doesn't break syntax or create XSS vulnerabilities.