Uniswap is a decentralized finance platform that enables users to trade cryptocurrencies directly from their wallets on the Ethereum blockchain. It eliminates the need for a centralized intermediary, allowing individual traders, developers, and liquidity providers to engage in crypto trading. Users can swap tokens, provide liquidity to earn fees, and create decentralized applications using Uniswap's protocol. The platform generates revenue by charging a small fee on each trade, which is then distributed to liquidity providers, encouraging them to contribute to the liquidity pools necessary for trading. Uniswap also supports developers through its governance program and expands its reach by integrating with other platforms like Robinhood. The goal of Uniswap is to foster an open and permissionless financial system using blockchain technology.