JSON to Python Dataclass

Generate Python dataclasses from JSON data.

Support
Works Offline
Privacy First
No Login
No API

JSON input

Python dataclass

About the JSON to Python Dataclass

Paste a JSON object or array and generate matching Python @dataclass definitions with type hints, including nested dataclasses for embedded objects and typing imports.

Examples

Simple object

{ "id": 1, "name": "Ada" }

Output

@dataclass
class Root:
    id: int
    name: str

Keyboard shortcuts

  • Copy the main outputCtrl / ⌘ + Shift + C
  • Download the resultCtrl / ⌘ + S
  • Share this toolCtrl / ⌘ + Shift + S
  • Reset the inputsAlt + R
  • Open the tool search paletteCtrl / ⌘ + K

Related tools

Frequently asked questions

Version 1.0.0 · Updated 2026-08-07 · Runs entirely in your browser