JSON to TypeScript

Generate TypeScript interface definitions from JSON data in your browser.

Input

Output

Infer fields from JSON objects and arrays and generate copyable TypeScript interfaces.

How to use

Object to interface

{"id":1,"name":"demo","enabled":true}

export interface Root {
  id: number;
  name: string;
  enabled: boolean;
}

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Your JSON and generated code never leave the current browser.

Yes. Nested objects generate separate interfaces.

The first non-null item determines the array type, so mixed arrays may require manual edits.

Next steps

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