개발자 도구

JSON to TypeScript

Paste JSON and instantly get TypeScript interfaces or type aliases with nested types

JSON Input
TypeScript Output

How it works

  • • Paste any valid JSON and get a TypeScript interface or type alias.
  • • Nested objects become inline types. Arrays are inferred from the first element.
  • • Change the root name to customize the top-level identifier.
  • • Everything runs locally in your browser — no data is sent anywhere.

필요한 게 없나요?

커뮤니티 피드백으로 무료 도구를 만듭니다. 워크플로에 필요한 도구를 제안해 주세요!

JSON to TypeScript — Free Online Tool | FreeTool