JSON Schema Validator
Validate any JSON document against a JSON Schema (draft-07). Paste schema and data side by side — get instant, path-specific error messages. Browser-only.
Supports JSON Schema Draft-07 only. Draft-2019-09 and Draft-2020-12 features (e.g. $dynamicRef, prefixItems, unevaluatedProperties) are not supported and will silently pass or produce unexpected errors.
Paste your schema and data, or load an example.
Disclaimer: Free tool provided “as is” by MonitorGiant. No warranty or liability for any data loss, security issues, or infrastructure problems arising from use of this tool. Results are for informational purposes only. · A Free Tool by MonitorGiant
How JSON Schema Validator works
- 1
Paste your JSON Schema
Enter a JSON Schema (draft-07 compatible) in the left pane. This defines the expected structure, types, required fields, and constraints for your data.
- 2
Paste the JSON data to validate
Enter the JSON document you want to check in the right pane. This is typically an API response, configuration file, or form payload.
- 3
Read the validation report
Click "Validate" to get an instant report. If the data is valid you'll see a green pass. Errors include the JSON path (e.g. $.user.age) and a plain-English description of what failed.
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