A Chrome extension showing a site's desktop and mobile layout at once

This Chrome extension displays a website's desktop and mobile layouts side-by-side in a single view, allowing developers and designers to instantly compare responsiveness without resizing their browser window. It is particularly useful for web developers, QA testers, and UX designers who need to quickly identify layout discrepancies across devices. The project is interesting because it streamlines a common, repetitive workflow into a single click, saving time and reducing the friction of manual testing.