JSON Schema validator. Supports drafts 4, 6, 7, 2019-09, 2020-12, OpenAPI 3.0, and OpenAPI 3.1.
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Updated
Jun 19, 2025 - Ruby
While JSON is probably the most popular format for exchanging data, JSON Schema is the vocabulary that enables JSON data consistency, validity, and interoperability at scale.
JSON Schema validator. Supports drafts 4, 6, 7, 2019-09, 2020-12, OpenAPI 3.0, and OpenAPI 3.1.
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Convert API Blueprint, Swagger and OpenAPI to JSON Schema and search through it
Created by Kris Zyp, Francis Galiegue, Gary Court, Austin Wright, Henry Andrews, Ben Hutton, and Greg Dennis
Released 2009