JSON (JavaScript Object Notation), is a lightweight format for data-interchange. It is easy to read and write. It is easy for machines and humans to generate and parse. It is based upon a subset the JavaScript Programming Language Standard ECMA-262 (3rd Edition - Dec 1999). JSON is a text format which is completely language-independent but still uses conventions familiar to programmers of the C family of languages. This includes C++, C# JavaScript, JavaScript, Perl and Python. These properties make JSON a great data-interchange language.
JSON is built upon two structures:
1. A collection of name/value pair. This can be realized in many languages as an object, record or struct.
2. An ordered list of values. This can be expressed in most languages as an array, vector or list.
These are universal data structures. They are supported by almost all modern programming languages in one way or another.