JSON to TypeScript Interface Converter
Generate TypeScript interfaces from JSON with live parsing, nested type inference, and quick copy support.
Local processing only. JSON is parsed and converted in your browser.
JSON Input
TypeScript Output
Converted code will appear here after the JSON passes validation.
Why use a JSON to TypeScript tool?
Frontend and full-stack teams can move faster when interfaces come directly from real JSON payloads instead of being modeled by hand.
A live JSON to TypeScript page is useful for building API clients, mock data contracts, and shared typings while keeping everything local and easy to review.