JSON is stand for ( JavaScript Object Notation ) and it is light weight text based open standard designed for human readable information and data interchange. The JSON format was originally specified by Douglas Crockford and is described in RFC 4627. The JSON filename extension is .json and JSON is used within various programming languages such as PHP, PERL, Python, Ruby, Java, etc. JSON is mainly used fo data interchange on client side to server side via internet and it is best format for designed to interchange the web information one place to another place. It is using for creating documents similar to XML and not an outright type of database, so there really is no single standard query language. Instead, there are many independent languages developed by different organizations for manipulating and parsing JSON documents.