JSON to Python Pydantic Model Generator Online

Convert JSON payloads into clean Python BaseModel classes with type hints (str, int, float, List[T], Optional[T]) and Field(alias=...) support for FastAPI and Django.

Open JSON to Pydantic Generator →

Pydantic V2 Ready

Generates clean PEP-8 snake_case attributes with Field alias definitions.

FastAPI Support

Ideal for building request/response validation schemas in Python web services.

Local & Offline

Runs locally in your browser with zero network requests.