Uniswap is an automated market maker or AMM, that was originally launched in late 2018, and gained popularity among traders due to the rise in Defi projects, and as a consequence the trading of their tokens. In this case, an AMM is a decentralized trading protocol that facilitates the trading of tokens between holders directly without needing a third-party exchange to arbitrate the transaction and hold the tokens. The aim of the Uniswap platform is to keep trading automated whilst improving its efficiency, mainly by solving liquidity issues with automated solutions.
Additionally, in 2020, Uniswap created its own governance token, UNI. This token that can be held by users of the protocol, allows users to have a stake in the project, whilst also investing in its profitability potential and in its governance, by being able to vote on the future roadmap and network upgrades.