JSON
JSON (JavaScript Object Notation, pronounced /ˈdʒeɪsən/; also /ˈdʒeɪˌsɒn/) is an open standard file format and data interchange format that uses human-readable text to store and transmit data objects consisting of attribute–value pairs and arrays (or other serializable values). It is a commonly used data format with diverse uses in electronic data interchange, including that of web applications with servers.
| Filename extension |
.json |
|---|---|
| Internet media type |
application/json |
| Type code | TEXT |
| Uniform Type Identifier (UTI) | public.json |
| Type of format | Data interchange |
| Extended from | JavaScript |
| Standard | STD 90 (RFC 8259), ECMA-404 (PDF), ISO/IEC 21778:2017 |
| Open format? | Yes |
| Website | json |
JSON is a language-independent data format. It was derived from JavaScript, but many modern programming languages include code to generate and parse JSON-format data. JSON filenames use the extension .json.
Douglas Crockford originally specified the JSON format in the early 2000s. He and Chip Morningstar sent the first JSON message in April 2001.