JSON All-in-One
JSON code generation / Python
Free online JSON to Python dataclass generator
Generate dataclasses for a nested service response. Open your JSON locally, then inspect and download the generated files.
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Try the service response example
The editor starts empty. Load this example only if you want a small source to test the generated model.
Static example with expected output
Verified with the local schema-codegen engine.
Service response JSON
{
"request_id": "req-12",
"result": {
"name": "Lea",
"scores": [
8,
9
],
"nickname": null
},
"ok": true
}Operation
Generate Python dataclasses for the nested response.
- Language: Python
- Serializer: none
- Style: dataclass
- File layout: split files
Expected output excerpt (GeneratedRoot.py)
@dataclass(slots=True)
class GeneratedRoot:
ok: bool
request_id: str
result: GeneratedRootResultCaveat: The generated dataclasses do not include JSON parsing or runtime validation code.
Before using this output
Dataclasses are declarations, not JSON loaders or validators. Review inferred names and add a separate loading step.
Generation analyzes the source shape; it does not validate every future input. Review the language, serializer, enum, primitive, and file-layout options before downloading.
Read the Python workflow