JSON Schema Validator (Validate JSON data against a JSON Schema)

JSON Schema validation checks whether your JSON data conforms to a defined schema — verifying data types, required fields, value ranges, string patterns, and more. It catches data errors before they cause runtime failures.

This validator supports JSON Schema Draft-07, the most widely adopted version. It handles type checking, format validation (email, URI, date), numeric ranges, string patterns, array constraints, and object property rules.

Each error shows the JSON path (e.g., $.user.age), what was expected, and what was found. Color-coded badges indicate the error type — red for type mismatches, amber for range violations, violet for enum errors.