Bisq, formerly known as Bitsquare, is a decentralized cryptocurrency exchange software program that works much differently from other exchanges.
Instead of relying on a centralized matching engine to connect buyers with sellers, Bisq simply gives buyers and sellers a way to interact with each other to facilitate a trade.
There’s no registration required: just download the software and start trading. The software supports decentralized trades for fiat currencies and cryptocurrencies. In January 2019, Bitsquare rebranded to Bisq.
Since Bisq never holds your funds, there’s no need to trust your money to a centralized authority. You retain your own cryptocurrency funds. You’re in charge of your own security.
Bisq encourages users to use multisig wallets to facilitate safe, successful trades, although it’s totally up to users how they want to manage their security.