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How to Use

  1. Paste your sample JSON data into the input editor
  2. Click "Generate Schema" to auto-create JSON Schema
  3. Review and customize the generated schema properties
  4. Copy the JSON Schema for use in your API validation or documentation

Use Cases

  • Creating API request/response validation schemas from example data
  • Generating OpenAPI/Swagger schema definitions from JSON payloads
  • Building form validation rules from existing data structures
  • Documenting data formats for team collaboration

Frequently Asked Questions

What JSON Schema version does this generate?
This tool generates JSON Schema Draft-07, which is the most widely supported version used by validators, API frameworks, and documentation tools.
Does it detect required fields?
Yes, the generator analyzes your JSON data and marks all present fields as required by default. You can customize which fields are optional after generation.
Can I generate schema from nested JSON?
Absolutely. The tool recursively analyzes nested objects and arrays to create complete, nested schema definitions with proper $ref references when applicable.

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