JSON to TypeScript

Convert any JSON payload into clean, formatted TypeScript interfaces. 100% in your browser.

JSON InputPaste your JSON here
Generated TypeScriptValid TypeScript
export interface RootObject {
  id: string;
  name: string;
  email: string;
  isActive: boolean;
  role: string;
  metrics: Metrics;
  tags: string[];
  projects: ProjectsItem[];
}

export interface ProjectsItem {
  id: string;
  title: string;
  stars: number;
}

export interface Metrics {
  loginCount: number;
  lastActive: string;
}
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How to use JSON to TypeScript

  1. 1Open the tool — it runs entirely in your browser, nothing is uploaded.
  2. 2Enter or paste your input and follow the on-screen controls.
  3. 3Copy or download the result. Add it to Saved to find it again.

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