What is JSON? Definition and explanations
JSON (JavaScript Object Notation) is a text format for representing structured data: objects made of key-value pairs, arrays, numbers, strings, booleans. Readable by a human and easy for a machine to produce, it has become the default exchange format of web APIs. It is described by the ECMA-404 standard and is independent of any programming language.
In one sentence
JSON is the standard text format for exchanging structured data between systems.