Whatnot Inc is an online marketplace that specializes in live-stream shopping experiences. Founded in 2019, the platform allows users to buy and sell a variety of products through interactive live auctions. Whatnot is particularly popular for collectibles such as trading cards, toys, and vintage items. By combining traditional e-commerce with live streaming, Whatnot provides an engaging and social shopping environment. The platform is available on both web and mobile app formats, offering users the ability to participate in or host live sales easily.