Dark patterns are user interface (UI) design techniques that manipulate or deceive users into taking actions they might not otherwise take, often benefiting the service provider at the expense of the users. In this paper, the authors have identified common dark pattern approaches, that require increased awareness and ethical design in e-commerce. In this paper a platform-independent browser extension has been developed to detect dark patterns in e-commerce websites. The proposed browser extension analyzes images, videos, and live camera footage to dark patterns. In real time on web and mobile platforms using YOLOv8 computer vision without effecting to user’s privacy. The proposed approach detects Dark Patterns in e-commerce websites with an accuracy of 97.3%.