JSON to Python
Convert JSON objects to Python type definitions, interfaces, or classes automatically.
About JSON to Python
Generate Python dataclasses or TypedDict definitions from JSON. Using dataclasses (Python 3.7+) or TypedDict gives you type hints, IDE autocompletion, and runtime validation support via libraries like pydantic. The converter infers Python types: str, int, float, bool, List[T], Optional[T], and nested dataclasses.
FAQ
How are null values handled?
Null values in JSON are mapped to nullable/optional types in the target language. In TypeScript: field: Type | null. In Go: *Type (pointer). In Python: Optional[Type]. In Java: Optional or @Nullable annotation. If a field is null in your sample JSON, consider providing a more complete sample where the field has a real value so the type can be accurately inferred.