Convert API JSON to TypeScript Interfaces

Save hours of boilerplate by instantly converting API responses into clean, type-safe TypeScript interfaces. Perfect for Angular, React, and Node.js developers.

With our free JSON to TypeScript Interface Generator, you can take any API response and transform it into ready-to-use TypeScript models. Whether you are building enterprise-grade Angular apps, scalable React frontends, or Node.js backends, type safety ensures faster development, fewer bugs, and better collaboration.

🚀 Try It Now

⚡ Type Safety

Eliminate runtime errors with fully typed API responses.

Turn raw JSON into strongly typed interfaces that ensure your data is always predictable and reliable across your project.

✅ IDE Autocomplete

Enjoy better IntelliSense in VS Code and JetBrains editors.

Automatically get code suggestions, error checks, and faster coding workflows with clean TypeScript interfaces.

🤝 Team Friendly

Generate sharable interfaces for collaborative development.

Keep your entire team on the same page by exporting consistent TypeScript definitions that work across frontend and backend.

🚀 Why Use JSON to TypeScript Interface Converter?

Writing TypeScript interfaces manually can be repetitive and error-prone. By using an automatic JSON to Interface generator, you can instantly create models that match your API responses. This not only saves development time but also prevents bugs caused by inconsistent data structures. Whether you're consuming REST APIs, GraphQL responses, or working with third-party data, our tool makes your workflow easier.

📌 Example Conversion

JSON Input

{
  "userId": 1,
  "username": "sourav",
  "isAdmin": true
}

TypeScript Interface

export interface User {
  userId: number;
  username: string;
  isAdmin: boolean;
}

❓ Frequently Asked Questions

🔹 What is a TypeScript interface?

A TypeScript interface defines the shape of an object, ensuring that your code follows a strict data structure and prevents runtime issues.

🔹 Why convert JSON to TypeScript interfaces?

Most APIs return JSON, and converting them into interfaces makes your codebase type-safe, more maintainable, and easier to scale.

🔹 Is this tool free?

Yes, our JSON to TS converter is completely free to use with unlimited conversions.