JSON → Python
Generate Python dataclasses from a JSON sample.
Private by design. Your input never leaves this browser. Conversions run locally on your device.
What this tool handles
- Emits @dataclass definitions with type hints, one class per nested object.
- Keys that are not valid Python identifiers are skipped and listed in a comment.
- Null values in the sample produce Optional fields.
Example
JSON sample
{"id":1,"name":"Ada","manager":null}
Python
from __future__ import annotations
from dataclasses import dataclass, field
from typing import Any, Optional
@dataclass
class Root:
id: int
name: str
manager: Optional[Any] = None
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