What we are building

In this tutorial, you’ll build a plain Vite-based JavaScript app featuring a barebones WebContainers app that loads the whole file system into the container and then runs the Express app. You don’t need prior experience with Vite, Express, or WebContainers.

Your app will feature an editable textarea on the left and a Preview window on the right. This is where you will be able to see the output of the Express server.