JSON to TypeScript Interface Generator
Convert JSON objects and arrays into TypeScript interfaces and type definitions instantly. 100% client-side privacy.
100% Client-Side Privacy (No Upload)
Root Type Name:
export interface UserProfile {
id: number;
name: string;
email: string;
isActive: boolean;
roles: string[];
profile: Profile;
scores: number[];
}
export interface Profile {
age: number;
avatarUrl: string;
social: Social;
}
export interface Social {
github: string;
twitter: string;
}How to Use JSON to TypeScript Converter
- 1Paste your raw JSON payload into the input editor on the left.
- 2Specify the root TypeScript interface name (e.g. UserProfile).
- 3Click 'Copy TypeScript' or 'Download .ts' to use in your project.
Key Features
- Automatic type inference for primitives, nested objects, and arrays.
- Clean TypeScript export with interface separation.
- 100% client-side processing with zero data upload.
Frequently Asked Questions (FAQ)
It recursively parses every nested object and generates dedicated sub-interfaces with capitalized naming for maximum modularity.
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