Free
JSON In, Types Out
Paste any JSON payload and instantly get TypeScript interfaces, Zod schemas, or Python Pydantic models. Free, runs in your browser, zero signup required.
Convert JSON NowTypeScript Interfaces
Generate properly typed TypeScript interfaces from any JSON. Handles nested objects, arrays, optional fields, and unions.
Zod Schemas
Get runtime-validated Zod schemas that match your JSON structure. Copy-paste into your Next.js or tRPC project.
Python Pydantic
Generate Pydantic BaseModel classes for your FastAPI or Django project. Full type annotations included.
Free tool. Pro export available.
Free
$0 one-time
Full type generation tool
- TypeScript interfaces
- Zod schemas
- Python Pydantic models
- Copy to clipboard
Pro Bundle
$9 one-time
Batch conversion + all formats
- Everything in Free
- Batch convert multiple JSON files
- Export as .ts / .py files
- Custom type naming
- JSON Schema output
FAQ
Stop writing types by hand.
Free, instant, 100% client-side. Paste JSON, get types, ship faster.
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