This online tool allows you to easily and quickly encode and decode a url. It avoids having to write a few lines of code to get the result.

This tool uses the javascript functions encodeURIComponent and decodeURIComponent.

A Uniform Resource Locator (URL) is a reference to a web resource, it is a web address. Browsers request web pages by using an URL. It is specific type of Uniform Resource Identifier (URI).

A URL contains a protocol (http, ftp, ...), a hostname (extendsclass.com), and a file name (url-encode.html).

URLs reference web pages (example: https://extendsclass.com), but reference also file transfer (ftp), email (mailto), ...

URL encoding (Percent Encoding) is a mechanism for converting URLS into a format that can be transmitted over the Internet.

It converts the characters into a bytes using the UTF-8 encoding, and it replaces unsafe ASCII characters with a "%" character followed by two hexadecimal digits. The two hexadecimal digits represent the numeric value of the unsafe character.

There are reserved characters, with special meaning, and they must be encoded.Sample: / is a reserved character, it is used for path component of a URI. / is converted to %2F.