JSON to TypeScript Converter

Transform JSON data into TypeScript interfaces and types instantly. Perfect for Next.js and React developers working with APIs. Supports nested objects, arrays, optional properties, and custom naming conventions.

Root Name:

JSON Input

23 lines

{
  "user": {
    "id": 1,
    "name": "John Doe",
    "email": "john@example.com",
    "isActive": true,
    "role": "admin",
    "profile": {
      "avatar": "https://example.com/avatar.jpg",
      "bio": "Software developer",
      "socialLinks": null
    },
    "posts": [
      {
        "id": 1,
        "title": "My first post",
        "content": "Hello world",
        "tags": ["javascript", "typescript"],
        "likes": 42
      }
    ]
  }
}

{
  "user": {
    "id": 1,
    "name": "John Doe",
    "email": "john@example.com",
    "isActive": true,
    "role": "admin",
    "profile": {
      "avatar": "https://example.com/avatar.jpg",
      "bio": "Software developer",
      "socialLinks": null
    },
    "posts": [
      {
        "id": 1,
        "title": "My first post",
        "content": "Hello world",
        "tags": ["javascript", "typescript"],
        "likes": 42
      }
    ]
  }
}

TypeScript Output