Data Utilities
JSON Schema Validator
Paste a JSON document and schema to validate conformance. Errors include the JSON path to the failing property. Supports JSON Schema Draft 7, 2019-09, and 2020-12.
Calculations run locally in your browserTool
About this tool
JSON Schema Validator
The JSON Schema Validator validates JSON documents against Draft 7/2019-09/2020-12 schemas, returning error messages with JSON paths to the failing properties.
• Validate an API response body against its OpenAPI schema before integration testing
• Check a dbt source YAML against an expected schema before running models
• Debug a schema validation error in a data pipeline with a precise error path
• Generate a schema stub from a sample JSON document
Next step
JSONPath Tester — Test JSONPath expressions against a JSON document with real-time results.
Open JSONPath Tester →
FAQ
What does this tool tell you?
The JSON Schema Validator validates JSON documents against Draft 7/2019-09/2020-12 schemas, returning error messages with JSON paths to the failing properties.
What affects the result most?
Validates JSON documents against Draft 7, Draft 2019-09, and Draft 2020-12 JSON Schema specifications. Error messages include JSON path to the failing property — immediately actionable. Schema inference mode: paste a JSON document and get a generated schema stub.
How should I use the result?
Treat the tool's output as a first-pass check, not a proof of correctness. A clean pass means no issues in the patterns this tool recognizes; a failure points to a specific problem you can investigate in your source. The underlying spec is the authoritative source for edge cases.
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