Encode text into a URL-safe format or decode a percent-encoded URL back to readable text. URLs can only contain a limited set of characters, so spaces, ampersands, question marks and non-ASCII characters must be percent-encoded (a space becomes %20, for example) to travel safely in a link or query string. This tool uses the same encoding rules browsers do, so it is reliable for building API requests, debugging redirect chains or cleaning up tracking-laden links. Choose encode or decode, paste your input, and copy the output. All processing happens in your browser, so nothing is logged or transmitted.