OpenSea is the world's first and largest decentralized peer-to-peer (P2P) marketplace for buying and selling Non-Fungible Tokens (NFTs). It supports multiple blockchains and allows users to create, list, and trade digital collectibles, art, and gaming items.
Example
“A collector listed her Bored Ape NFT on OpenSea for 85 ETH and received an offer within hours from a buyer on the other side of the world.”