JSON to TypeScript

JSON to TypeScript is a tool that automatically converts JSON data to TypeScript type definitions. It analyzes the JSON structure and generates corresponding interface or type declarations, helping developers achieve type safety and code hints in TypeScript projects.

1. Paste JSON data in the left input box, or click the sample button to load an example
2. Configure options: set root type name, choose interface/type style, whether to add export, etc.
3. The corresponding TypeScript type definitions are automatically generated on the right
4. Click the 'Copy' button to copy the generated type definitions to clipboard
5. Paste the type definitions into your TypeScript project to use

Simple Object Conversion

输入 JSON：
{
  "name": "张三",
  "age": 28,
  "isActive": true
}

输出 TypeScript：
export interface Root {
  name: string;
  age: number;
  isActive: boolean;
}

Nested Object Conversion

输入 JSON：
{
  "user": {
    "id": 1,
    "profile": {
      "avatar": "url",
      "bio": "简介"
    }
  }
}

输出 TypeScript：
export interface UserProfile {
  avatar: string;
  bio: string;
}

export interface User {
  id: number;
  profile: UserProfile;
}

export interface Root {
  user: User;
}