What You’ll Build Following this tutorial, you’ll build a simple web app to store text notes and count characters and words in them.

Here’s how to make a web app, as well as some tips for managing it. Web apps require Safari 17, which is included with macOS Sonoma.

Google is testing a new vibe-coding tool called Opal, available in the U.S. through Google Labs, that lets users quickly spin up web apps with just a few prompts.