Js2TS

Js2TS is a browser-based converter that uses AI and ChatGPT to turn JavaScript into TypeScript in seconds. It helps reduce manual typing work and supports teams migrating to TypeScript or maintaining mixed JS/TS codebases.

How it works

• Paste your JavaScript into the input field
• Click “Convert”
• The model analyzes the code structure and generates TypeScript with inferred types, interfaces, and annotations
• Copy the result into your editor

Who it’s for

• Frontend and backend developers moving code to TypeScript
• Tech leads improving type safety in existing projects
• Students learning TypeScript through real code examples

Why use it

• Runs entirely in the browser with no installation or setup
• Produces immediate output you can review and refine
• Useful for refactoring, legacy code updates, and gradual adoption of stricter typing