JSON → Python Class
Generate Python classes from JSON. Supports Pydantic.
JSON Input0 chars
Output
Lines: -Size: -
🛡️️Zero server logs. Conversion runs 100% inside your browser.
JSON → Python Class
Generate Pydantic v2 models from JSON with Field aliases for camelCase compatibility. Handles proper class ordering and type hints. 100% client-side.
🔒 Client-side only⚡ Web Worker processing🌐 Works offline🛡️ Zero server logs
How to Use
- Paste your JSON data into the input editor.
- Click Convert to generate Pydantic BaseModel classes.
- Copy the generated Python code with alias mappings for camelCase JSON compatibility.
Frequently Asked Questions
Questions about this tool? We have got answers.
Why use Field(alias=...)?
Python uses snake_case while JSON uses camelCase. Field aliases allow Pydantic to deserialize camelCase JSON while keeping Pythonic field names.
How are classes ordered?
Referenced types are defined before they are used. Child classes appear before the parent root class to prevent NameError.
Is my data sent to a server?
No. All conversion is 100% client-side in your browser.
Tool Changelog & Updates
1.0.02026-06-09
- Feature: Initial release