The JSON to TypeScript converter turns any JSON payload into ready-to-use TypeScript interfaces. Nested objects become their own interfaces, arrays infer their element type, and primitives map to string, number or boolean. Paste JSON on the left and the interfaces appear live on the right.

This saves time when you receive an API response or config file and need a typed shape for your codebase. Output is plain, standard TypeScript with no dependencies. Everything is processed locally in your browser.