Python Dataclass Generator
Generate Python dataclasses from a JSON document.
JSON Input
Python Output
Python dataclass output appears here
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Frequently Asked Questions
Why are field names snake_cased?▾
It matches PEP 8, Python's standard naming convention, even when the source JSON uses camelCase keys.
How are null values handled?▾
A null value produces Optional[Any], since the sample didn't reveal the field's real type.
How are nested objects handled?▾
Each nested object gets its own @dataclass, derived from its key, rather than a nested dict type.
Is my data uploaded anywhere?▾
No — generation runs entirely in your browser.