Skip to main content
CheckTown

JSON Schema Validator

Validate JSON data against a JSON Schema definition with multi-draft support

Schema Draft
Load Example

Validate JSON against a schema

Supports drafts 04, 06, 07, 2019-09, and 2020-12

Meer informatie

JSON Schema-validatie: complete gids voor drafts en regels

Valideer JSON-documenten met JSON Schema. Leer over draftversies, compositiezoekwoorden en patronen.

What Is JSON Schema?

JSON Schema is a vocabulary for annotating and validating JSON documents. It defines the structure, types, and constraints that a JSON document must satisfy. Think of it as a contract — the schema describes what valid data looks like, and validators check whether a document conforms to that contract.