Effortlessly Convert JSON to TypeScript Interfaces

TypeScript is amazing, but manually typing out interfaces for massive JSON responses from an API is not. It's tedious, error-prone, and let's face it—boring.

You grab a response from Postman, paste it into your editor, and start typing: interface User { id: number; name: string... }

There has to be a better way. And there is.

The Problem with Manual Typing

1. Time Consuming: Converting a 50-field JSON object can take 10 minutes.
2. Human Error: It's easy to miss a nested object or mistype a field name.
3. Maintenance: If the API changes, you have to redo the manual work.

The Solution: Axonix Type Converter

Our Type Converter automates this entire process.

How It Works

1. Paste JSON: detailed Dump your raw JSON response into the left panel.
2. Select Language: Choose TypeScript (or Go, Java, Python, etc.).
3. Copy Result: Instantly get a perfectly formatted interface or struct.

Example

Input (JSON):

{
  "id": 1,
  "name": "Leanne Graham",
  "address": {
    "street": "Kulas Light",
    "city": "Gwenborough"
  }
}

Output (TypeScript):

interface RootObject {
  id: number;
  name: string;
  address: Address;
}

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

Beyond TypeScript

We don't just stop at TypeScript. If you're a backend developer needing Go structs or a mobile dev needing Swift classes, we've got you covered.

Start saving time today with the Type Converter.