Data & formats

JSON → TypeScript

Infer clean TypeScript interfaces from a JSON payload.

Root type name

JSON input

TypeScript output

export interface ApiResponse {
  id: number;
  name: string;
  active: boolean;
  roles: string[];
  profile: Profile;
}

export interface Profile {
  avatarUrl: null;
  joinedAt: string;
}

Types are inferred from the sample values. Review nullable and mixed arrays before using the result in production.

JSON tools
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YAML ↔ JSON
Number base converter

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JSON → TypeScript

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