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Rhad ac am ddim JSON to TypeScript Converter

Generate TypeScript interfaces or type aliases from any JSON object or array. Paste your JSON and get ready-to-use TypeScript types instantly.

Runs in your browserNo sign-up, no pop-upsNid oes angen mewngofnodiAm ddim am byth

Root interface name

JSON input

TypeScript output

export interface User {
  id: number;
  name: string;
  email: string;
  isActive: boolean;
  score: number;
  tags: string[];
  address?: null;
}

export interface Root {
  user: User;
  createdAt: string;
  version: number;
}

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