JSON is a format to store and transfer data. It is text-based and human readable which can be read and edited with any text editor. JSON is widely used by mobile apps, web apps, and some APIs, especially for analytics.
JSON is a serializable, object-oriented data format that is designed with efficiency in mind. One of JSON's best features is the fact that it reduces the need for custom data formats to a single one. This means that a JSON file can be read and edited by any programming language without the use of a third-party software program, which has traditionally been required when exchanging information between different languages.