JSON to TypeScript Interface
Generate TypeScript interfaces from JSON instantly. Perfect for frontend developers working with APIs.
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Why Use Our TypeScript Generator?
Type-Safe Code
Generate properly typed interfaces with correct TypeScript types.
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Instant Generation
Generate interfaces instantly. No server uploads or waiting times.
TypeScript Type Mapping
JSON to TypeScript Type Mapping:
| JSON Type | TypeScript Type | Example |
|---|---|---|
| string | string | "hello" |
| number | number | 42, 3.14 |
| boolean | boolean | true, false |
| null | null | null |
| array | T[] | string[] |
| object | interface | nested interface |
Example:
Input JSON:
{
"id": 1,
"name": "John",
"roles": ["admin"]
}
Output TypeScript:
export interface Root {
id: number;
name: string;
roles: string[];
}