JSON Schema Validator
Draft 2020-12
Validate your JSON against standard Schemas. Powered by AJV (Another JSON Schema Validator).
Schema Validator
JSON Schema
JSON Data
Validation Report
What is JSON Schema?
JSON Schema Validation checks if a JSON document conforms to a predefined structure or "schema" (like Draft 2020-12). It ensures required fields are present and data types are correct, serving as a reliable contract for data exchange between APIs and clients.
Validation Steps
1Data
Paste the JSON data instance you want to validate in the main editor.
2Schema
Enter your JSON Schema definition in the Schema Validator panel.
3Verify
Click "Validate" to see if the data conforms. Errors are listed with precise paths.