Syntax versus structure
Ordinary JSON validation checks punctuation. Schema validation goes further by checking whether the parsed data has the fields, types, and constraints an API or application expects.
JSON Schema Validator
Validate JSON against required properties, value types, ranges, patterns, and other JSON Schema rules without uploading either document.
Schema validator workspace
Check JSON values, required fields, and constraints against a schema.
Schema validation passed
The JSON satisfies every rule in this schema.
JSON data
JSON Schema
Validation runs locally with JSON Schema draft-07 support.
Readable error locations
Every failed rule includes its instance path, making nested payload problems easier to locate before sending data to an API or committing configuration.