JavaScript Object Notation (JSON) is a data description language. It is a lightweight, text-based data exchange format that can be used regardless of programming language. The name and syntax are derived from the object notation in JavaScript.

JSON format is widely applied in all web development. JSON strings always strip whitespace, indentation and line breaks to save network bandwidth and manuscript size that too hard to read and debug. JSON formatter also known as beautifier or viewer. This is an online tool that can reformat your JSON code.

Simply put, JSON converts a set of data represented by a JavaScript object into a string, and this string can be easily transmitted over a network or between programs, and can be restored to a data format supported by each programming language as needed, for example, in PHP, JSON can be restored to an array or basic object. If you need to use an array transmission value when using AJAX, you need to convert the array to a string in JSON.