JSON to Python Class

When you consume APIs in Python, plain dictionaries work at first, but they quickly become hard to maintain. Dataclasses with type hints improve readability, editor completion, and long-term stability, especially in automation scripts and internal tools.

This generator reads a sample JSON payload and turns nested objects into multiple dataclasses while inferring practical field types such as `int`, `float`, `bool`, `str`, and `list[...]`.

Create Python model scaffolds in seconds. Perfect for prototypes, internal dashboards, ETL scripts, and service integrations, especially for projects serving residents of Japan and international use cases.

Optional features include automatic camelCase to snake_case conversion and generation of from_dict() classmethods for easy JSON-to-object conversion.

The output is meant to be a strong first draft rather than a perfect final schema, which makes it ideal for reducing repetitive setup work and accelerating code reviews.

All conversion stays inside your browser, so confidential payloads remain local and are never sent to an external code-generation service.