Ecma International Home
contact us
Ecma Site Map


Standard ECMA-404
The JSON Data Interchange Format

(October 2013)

JSON is a lightweight, text-based, language-independent data interchange format. It was derived from the ECMAScript® programming language, but is programming language independent. JSON defines a small set of structuring rules for the portable representation of structured data.

The following file can be freely downloaded:

File name Size (Bytes) Content
ECMA-404.pdf 1 135 803 Acrobat (r) PDF file

This edition has been prepared under the Ecma RF patent policy.

This Ecma publication shall also be approved as ISO/IEC 21778.


Back Back





only search Ecma International

Level A conformance icon, 

          W3C-WAI Web Content Accessibility Guidelines 1.0