JSON Schema Validator
Validate JSON data against a JSON Schema and inspect validation errors.
Pending
Schema Input
Paste the JSON Schema definition here.
JSON Data Input
Paste the JSON document to validate here.
Validated Data Preview
Validation Errors
How to use
- Paste a JSON Schema into the left editor.
- Paste JSON data into the right editor.
- Click 'Validate JSON' to run schema validation.
- Review the status badge and detailed error table.
- Copy the validated data preview when you need the parsed payload.
Related Knowledge
JSON Schema describes the expected shape of JSON documents. It is widely used for API contracts, configuration validation and data quality checks.
Why validate with JSON Schema?
Schema validation catches missing required fields, wrong types and constraint violations before bad data reaches downstream systems.
What does the error table show?
Each error includes the JSON path, the failed keyword and a human-readable message, which makes debugging invalid payloads faster.
Key Features
- Schema and data editors
- AJV-based validation
- Detailed error table
- Status badge and parsed preview
Common Applications
- Validate API payloads
- Check configuration files
- Test event contract changes
- Inspect schema rule failures quickly