Paste JSON, get typed TypeScript interfaces. Nested objects become their own interfaces.
Paste a JSON object and the tool walks its structure, infers a type for every field (string, number, boolean, arrays, nested objects), and emits matching TypeScript interfaces. Nested objects become their own named interfaces so the result is clean and reusable.
Yes. Arrays get an element type inferred from their items (merged into a union if items differ), and nested objects are extracted into separate interfaces named after their key.
No. The conversion runs entirely in your browser. Nothing is sent to a server, so you can safely convert internal or sensitive payloads.