- Paste JSON.
- Set a root class name.
- Click Generate Models.
JSON to Pydantic Models
Generate Pydantic models from JSON.
How to Use This Tool
Learn More About JSON to Pydantic Models
Why Pydantic models?
Pydantic provides runtime validation and type hints for Python apps.
About JSON to Pydantic Models
Pydantic models validate data in Python applications. This tool generates BaseModel classes from JSON samples quickly.
Create Pydantic models from JSON.
- Runs in browser
- Yes
- Output
- Python
- BaseModel
- Yes
Examples
Generate Pydantic models
Convert JSON into BaseModel classes.
Input
{"id":1,"name":"Ava"}Output
from pydantic import BaseModel
from typing import List, Optional, Any
class Root(BaseModel):
id: int
name: strFeatures
Pydantic output
Generates BaseModel classes.
Type inference
Infers strings, numbers, booleans, lists, and objects.
Nested models
Creates nested model classes automatically.
Use Cases
- Validate API payloads in Python.
- Generate models for FastAPI apps.
- Prototype data schemas quickly.
Frequently Asked Questions
Related Tools
Generate Python dataclasses or TypeScript types using related tools.