Creating your own Chrome extension might sound technical, but it’s easier than most people think. With basic knowledge of HTML, CSS, and JavaScript, anyone can build a working extension and publish it on the Chrome Web Store.
The process starts with a manifest.json file — this is the heart of your extension. It defines permissions, background scripts, browser actions, and more. Then you create the UI and functions — like popup.html for front-end and script.js for actions.
After testing locally, you can zip your folder and submit it to the Chrome Web Store for review. Once approved, your extension becomes live and accessible to users worldwide.
Building a Chrome extension is not just for developers — even entrepreneurs, digital marketers, and business owners can create custom tools to solve niche problems or offer value to their users.