eBay is a multinational e-commerce corporation that operates a global online marketplace, facilitating consumer-to-consumer and business-to-consumer sales. Founded in 1995, eBay has grown into one of the world's largest online marketplaces, connecting millions of buyers and sellers across various product categories.

The platform allows individuals and businesses to buy and sell a wide range of goods, including electronics, fashion items, collectibles, home goods, and much more. eBay provides a user-friendly interface where sellers can list their products for sale, set prices, and manage transactions, while buyers can browse listings, place bids in auctions, or purchase items at fixed prices using the "Buy It Now" feature.

One of eBay's distinguishing features is its auction-style listings, where sellers can set starting prices and allow buyers to place bids over a specified period. However, eBay also offers options for sellers to list items at fixed prices, providing flexibility in how transactions are conducted.

eBay operates on a feedback system, where buyers and sellers can rate each other based on their experiences, helping to establish trust and accountability within the marketplace. Additionally, eBay offers various tools and services to enhance the buying and selling experience, including secure payment processing through PayPal (though eBay has also developed its own payment processing system), seller tools for managing listings and analysing sales data, and buyer protection policies to safeguard purchases.

Over the years, eBay has expanded its reach through acquisitions and partnerships, diversifying its offerings and services to meet the evolving needs of online shoppers and sellers. With a global presence spanning numerous countries and languages, eBay remains a prominent player in the e-commerce industry, providing a platform for individuals and businesses to engage in online commerce on a massive scale.