JSON to TypeScript

Why Generate TypeScript from JSON?

When working with third-party APIs or external services, you often receive data in JSON format. Manually writing TypeScript interfaces for complex API responses can be tedious and prone to errors. Our generator parses the JSON structure and infers the correct TypeScript types for you.

How to Use:

1. Paste your JSON response into the input editor.
2. Click Generate Interfaces.
3. Copy the TypeScript code into your project.

Example Conversion

{
  "id": 1,
  "name": "John",
  "active": true
}

interface Root {
  id: number;
  name: string;
  active: boolean;
}

Notes & Best Practices

• The main interface is typically named Root. You can easily rename it in your code.
• Nested objects are extracted into separate interfaces for better reusability.
• Nullable fields or complex unions might require manual adjustment if the JSON provided does not cover all possible states.