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JSON Schema Validator

Validate JSON data against a schema — supports type, required, pattern, and more

Free Client-Side No Login No Storage
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How to Use the JSON Schema Validator

  1. Paste your JSON Schema on the left.
  2. Paste the JSON data to validate on the right.
  3. Click Validate to check compliance.

Supports type, required, properties, items, minimum/maximum, minLength/maxLength, pattern, and enum validation. All client-side.