JSON Schema Validator

Validate JSON documents against JSON Schema specifications. Supports draft 2020-12, draft-07, and earlier versions.

JSON Data
JSON Schema

Why use JSON Schema validation

JSON Schema defines the structure, required fields, and data types for JSON documents. Common use cases:

  • API contract validation for request and response payloads
  • Configuration file validation before deployment
  • Form data validation in frontend applications
  • Automated testing of JSON data structures

Specification reference: json-schema.org