JSON-LD logo JSON-LD

JSON for Linking Data


Data is messy and disconnected. JSON-LD organizes and connects it, creating a better Web.

W3C JSON-LD Working Group Launched! The JSON-LD specification work continues at the W3C JSON-LD Working Group! Please join us there, follow the mailing list, and participate in the specification repositories.

Linked Data

Linked Data empowers people that publish and use information on the Web. It is a way to create a network of standards-based, machine-readable data across Web sites. It allows an application to start at one piece of Linked Data, and follow embedded links to other pieces of Linked Data that are hosted on different sites across the Web.

A Simple Example

{
  "@context": "https://json-ld.org/contexts/person.jsonld",
  "@id": "http://dbpedia.org/resource/John_Lennon",
  "name": "John Lennon",
  "born": "1940-10-09",
  "spouse": "http://dbpedia.org/resource/Cynthia_Lennon"
}

JSON-LD logo JSON-LD

JSON-LD is a lightweight Linked Data format. It is easy for humans to read and write. It is based on the already successful JSON format and provides a way to help JSON data interoperate at Web-scale. JSON-LD is an ideal data format for programming environments, REST Web services, and unstructured databases such as Apache CouchDB and MongoDB.



Playground

The JSON-LD Playground is a web-based JSON-LD viewer and debugger. If you are interested in learning JSON-LD, this tool will be of great help to you. Developers may also use the tool to debug, visualize, and share their JSON-LD markup.

Launch the JSON-LD Playground

Developers

JSON-LD is available in a number of popular programming environments. Each implementation of JSON-LD listed below is fully conforming to the offical JSON-LD specifications.

The JSON-LD Test Suite (and Framing Test Suite) is useful for validating JSON-LD Processors.

Conformance of various processors is documented in the official implementation report.

Getting Help / Collaborating

JSON-LD 1.1 is being formally specified in the W3C JSON-LD Working Group. To participate in this work, please join the W3C and then join the Working Group. The Working Group mailing list is visible to the public and participation in the specification repositories is encouraged. Additionally, discussions and exploration continue in the Community Group spaces mentioned below.

JSON-LD has been developed by the W3C JSON-LD Community Group. It is a W3C Recommendation as of 16 January 2014. Participation is open to the public. There is a JSON-LD Github repository. If you need immediate help, we have a #json-ld IRC support channel on freenode.net. There is also a JSON-LD mailing list. All weekly meetings are open to the public, and are minuted, recorded, and archived. Listed below are all of the communication tools that the community uses on a weekly basis.

Learn More...

This website contains a number of curated video, presentations, tutorials, and documentation about JSON-LD. Assuming you are familiar with JSON, these training materials will help you quickly put the power of JSON-LD into your web development efforts.

Learn more about JSON-LD