JSON Schema Validator

Validate JSON data against a JSON Schema locally in your browser.

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About JSON Schema Validator
JSON Schema Validator checks JSON documents against JSON Schema specifications. It quickly highlights missing required properties, type mismatches, and structural violations.
How to use JSON Schema Validator
  1. Paste your JSON Schema definition into the schema box.
  2. Paste the JSON document you wish to validate into the data box.
  3. Click Validate JSON to execute the schema check.
  4. Read the validation report to confirm compliance or fix identified errors.
Examples
Schema: {"type":"object","required":["id"]}
Data: {"id":101}
Result: Valid JSON document against schema.
FAQ
Which schema draft versions are supported?
Validation supports Draft-07, Draft-2019-09, and Draft-2020-12 rules locally.
Is my payload uploaded to external servers?
No. Validation is executed completely inside your browser via local script processing.
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