Does JSON to TypeScript upload my input?

No. This tool runs in your browser unless the privacy badge explicitly says a server route is required.

Can I use this for production secrets?

Avoid pasting sensitive production data into any website. Prefer local test data or redacted payloads.

json to typescriptjson to interfacetypescript interface generatorjson typesPrivacy: Browser local

Infer TypeScript interfaces from sample JSON objects.

Input / Output

Input, output, and copy actions stay in this main surface. Examples and reference checks are separated below.

Copy-ready output

JSON sampleMode

Output

Copy-ready output

export interface Root {
  id: number;
  name: string;
  active: boolean;
  roles: string[];
}

Local session

Input state is saved only in this browser so you can restore the last workspace without an account.

Open examples, checks, and related tools only after the primary input/output flow is done.

Guides

Starting points for this utility

{"id":1,"name":"Bob"}

Code