Convert JSON to TypeScript Interfaces
Paste a JSON object and get TypeScript type definitions generated automatically. Handles nested objects, arrays, optional fields, and union types.
A real time saver when integrating with an API. Paste a sample response and get type-safe interfaces you can drop directly into your TypeScript project. Beats writing them by hand.
Frequently Asked Questions — JSON to TypeScript
Both options are available. Interfaces are the default since they're more common for object shapes in TypeScript.
Yes. Nested objects get their own named interfaces, referenced from the parent. Arrays are typed with their element type.
Yes. Paste any valid JSON and get TypeScript types instantly. Great for typing API responses in your codebase.
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