SushiSwap is a decentralized exchange (DEX) launched in 2020 on the Ethereum blockchain, designed to facilitate peer-to-peer trading of cryptocurrencies without intermediaries. It offers features such as token swaps, liquidity provision, yield farming, and staking, rewarding participants with its native token, SUSHI. SushiSwap operates across multiple blockchains and is part of the broader DeFi ecosystem, attracting users seeking decentralized financial services and governance participation.