Common features of an e-commerce platform include product listings, shopping cart functionality, secure payment processing, and user accounts. These platforms typically support inventory management, allowing businesses to track stock levels and manage orders efficiently. Additionally, they often feature customer reviews, wish lists, and personalized recommendations to enhance user experience. Other essential aspects include mobile responsiveness, search engine optimization (SEO), and integration with third-party services like shipping and analytics. Together, these features create a seamless online shopping experience for consumers.