Whatnot is a livestream shopping and e-commerce platform and app that specialises in buying, selling, and trading collectibles, particularly focusing on trading cards, comic books, toys, and other pop culture items. The platform allows users to browse, buy, and sell items within specific categories, connecting collectors and enthusiasts through live streams from around the world. Sellers often host live auctions and sales events where users can bid on items in real-time or purchase them outright. The platform provides features for sellers to list their items easily and offers various tools to facilitate secure transactions and interactions between buyers and sellers.

Founded by collectors, Whatnot couples rigorous seller vetting with unmatched buyer protection to create a trusted and welcoming space for people to share their passions with others. Backed by Andreessen Horowitz, YC Continuity, and CapitalG, Whatnot’s valuation is $3.7B. Today, Whatnot’s top sellers earn up to eight figures annually using the platform. It has gained popularity within the collectibles community as a convenient and user-friendly platform for buying, selling, and trading a wide range of collectable material.