JSON for Linking Data Community Group (2024)

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JSON-LD (JavaScript Object Notation for Linking Data) is a lightweight Linked Data format that gives your data context. It is easy for humans to read and write. It is easy for machines to parse and generate. It is based on the already successful JSON format and provides a way to help JSON data interoperate at Web-scale. If you are already familiar with JSON, writing JSON-LD is very easy. These properties make JSON-LD an ideal Linked Data interchange language for JavaScript environments, Web service, and unstructured databases such as CouchDB and MongoDB.

json-ld

Note: Community Groups are proposed and run by the community. Although W3C hosts these conversations, the groups do not necessarily represent the views of the W3C Membership or staff.

final reports / licensing info

date	name	commitments
2012-06-27	JSON-LD Syntax 1.0	Licensing commitments
2012-06-27	JSON-LD API 1.0	Licensing commitments
2013-03-22	JSON-LD 1.0	Licensing commitments
2013-03-28	JSON-LD 1.0	Licensing commitments
2013-03-28	JSON-LD 1.0 Processing Algorithms and API	Licensing commitments
2018-06-08	JSON-LD 1.1 A JSON-based Serialization for Linked Data	Licensing commitments
2018-06-08	JSON-LD 1.1 Processing Algorithms and API	Licensing commitments
2018-06-08	JSON-LD 1.1 Framing	Licensing commitments
2023-12-12	YAML-LD	Licensing commitments

drafts / licensing info

name
JSON-LD Framing API 1.0
RDF Universal Graph Normalization 2011
JSON-LD-star

Chairs, when logged in, may publish draft and final reports. Please see report requirements.

Publish Reports

Gregg Kellogg | Posted on: December 12, 2023

The JSON for Linking Data Community Group has published the final report for YAML-LD. YAML-LD defines an API parallel to JSON-LD for describing data using YAML (YAML Ain’t Markup Language). YAML-LD is fully consistent with JSON-LD and YAML-LD documents can be used with JSON-LD Contexts or visa-versa.

The JSON-LD CG expects that YAML-LD will be picked up by the JSON-LD Working Group for eventual publication as a W3C Recommendation.

Gregg Kellogg | Posted on: February 18, 2021

The JSON for Linking Data Community Group has released the first draft of JSON-LD-star. This describes a mechanism for extending JSON-LD to support RDF-star graphs including extensions to the Expansion, Compaction, Flatting, From RDF, and To RDF algorithms.

JSON-LD-star allows both annotations and embedded nodes to represent statements about links in a linked data graph, similar to the way that Labeled-Property Graphs can have attributes on links.

For example:

{ "@context": { "@base": "http://example.org/", "@vocab": "http://example.org/" }, "@id": "bob", "age": { "@value": 42, "@annotation": { "certainty": 0.8 } }}

Annotates the link “bob age 42” with “certainty 0.8”.

The group invites comments on GitHub issues.

W3C Team | Posted on: June 8, 2018

On 2018-06-08 The JSON for Linking Data Community Group published the following specification:

JSON-LD 1.1 Framing.

This is a call for Final Specification Commitments. To provide greater patent protection for this specification, participants in the JSON for Linking Data Community Group are now invited make commitments under the W3C Community Final Specification Agreement by completing the commitment form. Current commitments are listed on the Web. There is no deadline for making commitments.

If you represent a W3C Member, please contact your Advisory
Committee Representative, who is the person from your organization
authorized to complete the commitment form.