JSON

JSON (JavaScript Object Notation, pronounced /ˈdʒeɪsən/ or /ˈdʒeɪˌsɒn/) is an open standard file format and data interchange format that uses human-readabletext to store and transmit data objects consisting of name–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.

For more information, see Wikipedia.