JSON is a format of storing and exchanging data. It stands for JavaScript Object Notation. JSON is a lightweight data-interchange format. It is used primarily to transmit data between a server and web application, as an alternative to XML. It is a text format that is completely language independent but uses conventions that are familiar to programmers of the C-family of languages, including C, C++, C#, Java, JavaScript, Perl, Python, and many others. This data interchange format is simple, small, and language independent JSON was derived from the JavaScript scripting language for representing simple data structures and associative arrays, called objects. It has become quite popular for transporting data between the server and web application. It is considered as a lightweight or language independent alternative to XML and is used in numerous AJAX applications.