The json file format was earlier developed for its usage as a subset of JavaScript but then now considered independent of the language. It is considered an alternative version of XML or eXtensible Markup Language which was a way to encode documents using a set of rules that was readable by both machines and humans. It can have data structures and objects of the programming mentioned in them. The json files are readable by human eyes and are basically text based small files. One such example of a json file would be information regarding bookmarks in a web browser. The json is basically a format which carries the information contained in the file between servers and web applications like web browsers, etc. JavaScript Object Notation or better known as json files are the files which are used for standard data interchange.