Enter any URL that you would like to perform a URL Encode/Decode on. (i.e. http://www.w3dt.net/ or http%3A%2F%2Fwww.w3dt.net%2F)
URL Encode / Decode is a tool that can be used to encode/decode URL Addresses.
Percent-encoding, also known as URL encoding, is a mechanism for encoding information in a Uniform Resource Identifier (URI) under certain circumstances. Although it is known as URL encoding it is, in fact, used more generally within the main Uniform Resource Identifier (URI) set, which includes both Uniform Resource Locator (URL) and Uniform Resource Name (URN). As such it is also used in the preparation of data of the "application/x-www-form-urlencoded" media type, as is often used in email messages and the submission of HTML form data in HTTP requests.
This web page encodes or decodes a string using URL Encoding. URL Encoding is used when placing text in a query string to avoid it being confused with the URL itself. It is normally used when the browser sends form data to a web server.
URL Encoding replaces spaces with "+" signs, and unsafe ASCII characters with "%" followed by their hex equivalent. Safe characters are defined in RFC2396. They are the 7-bit ASCII alphanumerics and the mark characters "-_.!~*'()"..
(Note that the standard JavaScript escape and unescape functions operate slightly differently: they encode space as "%20", and treat "+" as a safe character.)
The w3dt URL encode/decode tool is based off code by David Nedved.
