JSON to Pydantic Model

Generate Python Pydantic models from JSON data. Create type-safe data validation classes with automatic type inference.

Input JSON

Paste your JSON data
🔧 All JSON Tools

Pydantic Output

Python model definition

Features

🐍 Python Type Hints

  • Automatic type inference
  • Optional field support
  • Nested model generation
  • List/Dict type annotations

✅ Data Validation

  • Runtime type checking
  • Custom validators
  • Field constraints
  • JSON Schema generation

🚀 Framework Ready

  • FastAPI integration
  • Django REST compatible
  • SQLAlchemy models
  • OpenAPI documentation