Tutorials

Building a Chrome extension from scratch is one of the fastest ways to go from idea to a working product that real people use. The barrier to entry is low compared to mobile apps or desktop software, and the Chrome Web Store gives you instant distribution to millions of potential users. These tutorials are designed to get you from zero to a published extension as efficiently as possible.

Each tutorial follows a hands-on approach. Instead of abstract explanations of API surfaces, you will build something concrete: a tab manager, a content blocker, a page annotator, or a productivity tool. Along the way, each guide explains not just the what but the why behind architecture decisions. You will learn when a service worker is necessary versus when a content script alone will do, how to structure your manifest for minimal permissions, and where to store state so it persists correctly.

The tutorials span a range of complexity. Beginner guides assume no prior extension experience and walk through the Chrome developer dashboard, manifest.json structure, and the debugging workflow. Intermediate tutorials tackle Manifest V3 migration, cross-tab messaging patterns, and integrating modern build tools like Vite or Webpack into your extension pipeline. Advanced tutorials cover topics like building a DevTools panel, implementing OAuth flows, or creating extensions that work across Chrome and Firefox from a single codebase.

Each tutorial includes complete source code that you can reference, fork, or use as a starting point for your own projects.