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JSON-LD

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by Heinrich Lukas Weil, last updated at 2024-09-16

JSON-LD is an extension of the widely used, machine readable JSON file format. It extends JSON with additional rules and capabilities encouraging recycling of shared types and web resources.

The added core concepts include:

  • @id property: Every object MUST have an @id property, whose value can be used to unambiguously identify the object and reference it from other places on the web.

  • @type property: Every object should have a @type property, which assigns a previously defined type for the object. This gives context about which properties can be expected.

  • @context property: Every object MAY have a @context property, which contextualizes all other properties of the object.

Find out more about JSON-LD on the official website or in this explanatory video