Ecommerce has revolutionized retail, offering a digital marketplace for buying and selling products and services. Customers enjoy convenience, vast product choices, and competitive prices, while businesses benefit from global reach and reduced overheads. Secure payment gateways ensure safe transactions, and personalized recommendations enhance user experiences. Reviews and ratings build trust, influencing purchasing decisions. Responsive design and mobile apps enable shopping on the go. However, challenges include intense competition, logistics complexities, and cybersecurity threats. As technology evolves, the ecommerce landscape continues to reshape traditional retail, fostering innovation and changing how we shop and sell.