JSON ( /ˈdʒeɪsən/ JAY-sun, /ˈdʒeɪsɒn/ JAY-sawn), or JavaScript Object Notation, is a text-based open standard designed for human-readable data interchange. It is derived from the JavaScript scripting language for representing simple data structures and associative arrays, called objects. Despite its relationship to JavaScript, it is language-independent, with parsers available for many languages.
The JSON format was originally specified by Douglas Crockford, and is described in RFC 4627. The official Internet media type for JSON is application/json. The JSON filename extension is .json.
The JSON format is often used for serializing and transmitting structured data over a network connection. It is used primarily to transmit data between a server and web application, serving as an alternative to XML.
Read more about JSON: History, Data Types, Syntax and Example, Schema, MIME Type, Use in Ajax, Security Issues, Object References, Comparison With Other Formats