JSON to TypeScript

A JSON to TypeScript converter reads a JSON object and produces TypeScriptinterface declarations that match the data's exact shape. Instead of manually writing interfaces for every API response, you paste the JSON and get typed interfaces in seconds.

1. 1Paste your JSON object or array into the left input panel
2. 2Click Convert or press Ctrl + Enter
3. 3TypeScript interfaces appear in the right panel instantly
4. 4Copy them to use directly in your TypeScript project

Input JSON:

{
  "id": 1,
  "name": "Ravi Mehta",
  "active": true,
  "address": {
    "city": "Surat",
    "zip": "395001"
  },
  "tags": ["developer", "designer"]
}

Generated TypeScript interfaces:

interface Root {
  id: number;
  name: string;
  active: boolean;
  address: Address;
  tags: string[];
}

interface Address {
  city: string;
  zip: string;
}