D/F DevFormat.tools
Type Generators Runs locally

JSON → Python Dataclass converter

Turn JSON objects into typed Python dataclasses in your browser, including nested models and lists.

JSONPython Dataclass

Private · browser only

Your data stays in this browser. Nothing is uploaded.

Conversion directions

Direction 01

JSON to Python Dataclass

Generate typed Python dataclasses from JSON.

Frequently asked questions

Which Python version does the output target?

The generated code uses standard dataclasses and built-in generic types available in modern Python 3.

How are invalid Python field names handled?

Field names are sanitized and a metadata mapping preserves the original JSON key.