JSON to TypeScript Interface
Generate TypeScript interfaces from JSON.
interface MyInterface {
name: string;
age: number;
active: boolean;
}What is JSON to TypeScript Interface?
Paste a JSON object to generate a TypeScript interface. Nested objects are inlined; arrays use the type of the first element.
FAQ
Is this tool free to use?
Yes. This tool is available to use for free.
Does the tool run in the browser?
Yes. The logic runs client-side in your browser.
Is my data uploaded to a server?
No. Your input stays in your browser and is not uploaded by this tool.
Can I use this tool for large files?
It depends on your device and browser. Very large inputs may be slow; for huge files, use a local CLI tool.
Example usage
Input
{"name": "x"}Output
interface T { name: string; }How to use
- Paste a JSON object
- Optionally set the interface name
- Copy the generated TypeScript