Paste JSON and get TypeScript types and interfaces instantly.
Paste a JSON sample and get TypeScript interfaces that match its shape. Useful for quickly typing API responses, config files, or data fixtures. Inference runs locally.
Paste a JSON sample — one representative object is enough.
Copy the generated TypeScript interfaces into your code.
If you provide multiple samples, the generator merges them into union types for fields that vary. Single samples produce a single concrete type.
Interfaces by default. You can rename them or convert to `type` aliases as you paste.