Type Generators Runs locally

JSON → TypeScript Interface converter

Generate clean TypeScript interfaces from JSON locally in your browser, with nested object and array support.

JSONTypeScript Interface

Private · browser only

JSON input

TypeScript Interface output

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

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Direction 01

Generate clean TypeScript interfaces from JSON.

Frequently asked questions

Can this converter infer nested TypeScript interfaces?

Yes. Nested objects generate separate interfaces and arrays infer their element types.

Is the generated TypeScript editable?

Yes. Copy or download the output and adapt the generated interfaces in your project.