1. MaketypesMake TypeScript types and proxy objects from example JSON objects. Can use proxy objects to dynamically type check JSON at runtime.
2. BrowserfsBrowserFS is an in-browser filesystem that emulates the Node JS filesystem API and supports storing and retrieving files from various backends.
3. jarjvmJAR JVM is a Java Virtual Machine interpreter written completely in JavaScript. It allows you to run your Java programs in the browser, no plugins required!