JSON to Python Converter Online - Dataclass & Pydantic Generator

What is JSON to Python Converter?

This tool automatically converts JSON objects into Python class definitions. It supports three popular Python patterns: Dataclass, TypedDict, and Pydantic BaseModel. Perfect for developers who need to quickly generate Python type definitions from JSON data structures.

Features

• Automatically detects JSON data types (string, number, boolean, array, object)
• Generates three Python patterns: Dataclass, TypedDict, and Pydantic BaseModel
• Converts camelCase keys to snake_case for Python naming conventions
• Handles nested objects and arrays with proper type annotations
• Supports Optional types for nullable fields
• One-click copy functionality for generated Python code

Supported Conversion Modes

• Dataclass: Uses Python's @dataclass decorator for immutable data structures
• TypedDict: Uses typing.TypedDict for dictionary-based type hints
• Pydantic BaseModel: Uses Pydantic for data validation and serialization