JS2TS

JS2TS is an online tool that converts JavaScript code to TypeScript using AI to automate the migration process. It targets developers seeking typed TypeScript output from existing JS code without lengthy manual edits. The tool emphasizes speed and ease by offering a direct paste-and-convert workflow and providing production-ready TypeScript output. It does not require user accounts or sign-in for conversions.

The converter docu­ments how the process works: paste JavaScript into the input box, click Convert, and view TypeScript in the output box. It highlights that the conversion relies on AI to infer types from usage patterns and to generate interfaces and generics, aiming to reduce manual workload and speed up migration for teams and individual developers.

JS2TS lists the kinds of output it can produce, including inferred types, typed interfaces, and proper generics, while noting support for various JavaScript patterns and module styles. It also mentions that the tool can transform React components and Node.js modules with typed exports and function signatures, handling JSX and common async patterns.

It presents the product as a straightforward converter that generates TypeScript output directly from existing JavaScript code, with emphasis on simplicity and accessibility.

Use cases

• Migrating React components to TypeScript with typed props and state.
• Generating TypeScript typings for Node.js modules.