Bisq

The software provides a peer‑to‑peer marketplace for buying and selling bitcoin against fiat currencies or other cryptocurrencies without requiring any registration or identity verification. Trades are conducted over a global network of users running the desktop client, and funds are secured in 2‑of‑2 multisignature wallets that remain under the control of the participants.

All user data is stored locally and never transmitted to a central server; each node operates as a Tor hidden service by default, preserving privacy and anonymity. The application is open‑source, with its code and governance discussions publicly available on platforms such as GitHub and Matrix, and it is governed by a decentralized autonomous organization built on Bitcoin.

The client runs on multiple operating systems, including macOS, Windows, and Linux distributions, and can be installed directly from downloadable packages. Users can create or accept offers through a graphical interface that guides them through the trade process in a matter of minutes.