JSON stands for JavaScript Object Notation, which is a lightweight format for storing and transporting data. It is a text-based format that uses human-readable text to store and transmit data objects consisting of attribute-value pairs and arrays. JSON is often used when data is sent from a server to a web page, and it is a common data format with diverse uses in electronic data interchange, including that of web applications with servers.
JSON is a language-independent data format, and it is derived from JavaScript, but many modern programming languages include code to generate and parse JSON-format data. JSON filenames use the extension .json. A JSON object is written inside curly braces, and it can contain multiple properties. A name/value pair consists of a field name (in double quotes), followed by a colon, followed by a value. JSON names require double quotes, while JavaScript names do not.
JSON is relatively easy to read and write, while also easy for software to parse and generate. It is often used for serializing structured data and exchanging it over a network, typically between a server and web applications. JSON has become popular as a data format for developers because of its human-readable text, which is lightweight, requires less coding, and processes faster. JSON can be used in JavaScript programs without any need for parsing or serializing.