JSON to TypeScript

The tool analyzes the structure of your JSON data, including nested objects and arrays, and generates corresponding TypeScript interfaces with proper types for each field.

Yes. The converter recursively walks through your JSON structure and creates separate named interfaces for each nested object. Arrays are typed based on their element types.

Yes. You can set a custom name for the root interface using the input field above the editor. All nested interfaces will be named based on their parent key.

Yes! All processing happens entirely in your browser. Your JSON data is never sent to any server. No data is collected, stored, or transmitted.

The tool maps JSON values to TypeScript types: strings become string, numbers become number, booleans become boolean, null becomes null, objects become named interfaces, and arrays become typed arrays.