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Generate JSON Schemas from Schema.org classes

Schema.org to JSON Schema

Generate JSON Schemas from Schema.org classes

You can find the generated schemas in the schemas/ directory.

To match the JSON-LD approach, properties that accept an array also accept a single value.

Example

Schema.org class for a Book

Property	Expected Type	Description
abridged	Boolean	Indicates whether the book is an abridged edition.
bookEdition	Text	The edition of the book.
bookFormat	BookFormatType	The format of the book.
illustrator	Person	The illustrator of the book.
isbn	Text	The ISBN of the book.
numberOfPages	Integer	The number of pages in the book.

Generated JSON Schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "schema:Book",
  "title": "Book",
  "description": "A book.",
  "type": "object",
  "allOf": [
    {
      "description": "The most generic kind of creative work, including books, movies, photographs, software programs, etc.",
      "$ref": "schema:CreativeWork"
    }
  ],
  "properties": {
    "abridged": {
      "description": "Indicates whether the book is an abridged edition.",
      "type": "boolean"
    },
    "bookEdition": {
      "description": "The edition of the book.",
      "type": "string"
    },
    "bookFormat": {
      "description": "The format of the book.",
      "$ref": "schema:BookFormatType"
    },
    "illustrator": {
      "description": "The illustrator of the book.",
      "$ref": "schema:Person"
    },
    "isbn": { "description": "The ISBN of the book.", "type": "string" },
    "numberOfPages": {
      "description": "The number of pages in the book.",
      "type": "integer"
    }
  }
}

To do

• Hardcode the identifiers schemas with regular expressions
• Hardcode the inferred property multiplicity after manually checking it

Credits

Thanks to geraintluff for the property multiplicity and the hardcoded schemas (licensed under the MIT License).