Javascript urlencode online tool can be easily used to process strings according to the RFC 3986 requirements (also known as Percent-Encoding and UrlEncode). URL encoding is required for data to be transmitted over HTTP protocol since some characters have special meaning (such as slash, space, ampersand, equals sign). During urlencoding such symbols are replaced with percent sign and then encoded symbol's ASCII code (e.g. & ⇒ %26).
Javascript code snippet is available below.