JS2TS
Convert any JavaScript to TypeScript with AI.
Free
No sign-up required
AI-powered
Seconds not hours
Zero storage
Your code stays private
Free Tool
Convert any JavaScript to TypeScript with AI.
Free
No sign-up required
AI-powered
Seconds not hours
Zero storage
Your code stays private
JS2TS uses AI to convert your JavaScript code to TypeScript instantly — adding static type annotations, interfaces, generics, and union types that would take hours to write manually. No sign-up, no account, no code stored. Featured on Product Hunt, TheresAnAIForThat, and PoweredByAI.
Adds static type annotations to your JS code in seconds — function signatures, interfaces, generics, classes, exports, and union types handled automatically.
Handles files of any size. Paste a snippet or your entire codebase — JS2TS processes it without breaking.
Results appear instantly. No waiting, no queue, no upload delay.
Your code is never stored or logged. Everything runs in real-time — safe for proprietary and production code.
JS2TS is a free AI-powered tool that converts JavaScript code to TypeScript. It adds static type annotations — including function signatures, interfaces, generics, and union types — automatically.
Yes, completely free. No sign-up, no account, no payment required.
Yes. JS2TS does not store or log any code. All processing happens in real-time and nothing is retained after your session.
JS2TS generates function signatures, interfaces, generics, class types, exports, and union types — the full range of TypeScript's type system.
JS2TS was built by 011BQ (ByteQuest Softwares), an ISO-certified AI-first software agency.