URL Encoder / Decoder — Free Online Tool

Plain text / URL Encoded output

What is URL encoding?

URLs can only contain a limited set of safe characters. When a URL includes spaces, non-ASCII letters, or symbols like &, =, or #, those characters must be replaced with a percent sign followed by two hex digits — for example, a space becomes %20 and @ becomes %40. This process is called percent-encoding or URL encoding.

When do you need it?

Building query strings for API requests
Passing URLs as parameters inside another URL
Debugging a malformed link that came back from a server
Reading encoded form data submitted from an HTML form

How to use this tool

Paste any plain text or full URL into the Encode tab and press Encode — every unsafe character is converted instantly. Switch to the Decode tab to reverse the process. All conversion happens locally in your browser; no text is ever sent to a server.