End-to-end encryption — All messages encrypted with Signal Protocol.
Mobile sync — Links with Signal on Android or iOS for unified messaging.
Cross-platform support — Works on Windows, macOS, and Linux.
Voice and video calls — Encrypted calls between desktop and mobile devices.
Signal Desktop is a privacy-focused messenger that syncs with your phone. It's an open-source alternative that encrypts everything by default, so your conversations stay between you and the recipient. The project is actively maintained by the Signal Foundation, a nonprofit dedicated to digital privacy.