URL formally stands for ‘Uniform Resource Locator’ , The URL is a string that has to be parsed programatically, this means that it has to abide by certain rules . The key sections of a URL are divided up by special delimiter characters. If these special characters where to show up in unexpected places the parsing would fail and the browser would have no idea what to do and just nope sorry couldnt find it.
You can use our online tool to either encode or decode a string of text. The term URL encoding is a bit inexact because the encoding procedure is not limited to URLs (Uniform Resource Locators), but can also be applied to any other URIs (Uniform Resource Identifiers) such as URNs (Uniform Resource Names).
About for more information: Wikipedia – Percent-encoding