URL Encode
About the URL Encoder
URLs are only allowed to contain a limited set of characters — letters, digits, and a small group of punctuation marks. Anything else, including spaces, accented letters, ampersands inside a query parameter, Arabic or Chinese characters, or symbols like # and ?, must be replaced with a percent-encoded sequence such as %20 or %E2%9C%93. The URL Encoder converts text into its percent-encoded form in one click so you never have to memorise the table of escape codes.
When you need URL encoding
Encoding is required whenever a value travels inside a URL: a search query passed as ?q=..., a redirect target, an OAuth callback, a tracking parameter built by an analytics tag, a deep link sent over SMS, or a REST API path that contains a slug with spaces. Without encoding, the browser or server will misinterpret special characters and the request will fail or land on the wrong endpoint.
How to use it
- Paste the text or URL into the input box.
- Click Encode to turn unsafe characters into percent-escape sequences.
- Copy the result with one click and paste it where you need it.
Encoding standard
The tool follows the standard encodeURIComponent rules of RFC 3986, which is the form you want for query parameters and path segments. It correctly handles full Unicode — including Arabic, Hebrew, emojis, and CJK scripts — by first converting characters to UTF-8 byte sequences before percent-encoding each byte.
Privacy
All encoding runs entirely in your browser using native JavaScript. Nothing is transmitted to our server, so you can safely process internal URLs, API keys, or tracking links without leaking sensitive data. To reverse this operation, use our companion URL Decode tool.