Signal Messenger

Signal is a nonprofit end-to-end encrypted communications app, driven by the mission to protect free expression and enable secure global communication through open source privacy technology.

Privacy isn’t an optional mode — it’s just the way that Signal works. Every message, every call, every time.

End-to-end encryption powered by the open source Signal Protocol keeps your conversations secure. Signal can't read your messages or listen to your calls, and no one else can either. We combine state-of-the-art security with the features that users expect in a modern messaging application. That’s why millions of people trust us every single day, all over the world.

Signal is built by a lean, remote-first team who keeps privacy at the core of everything we do.

Learn more about what it’s like to work at Signal and see open positions at https://signal.org/workworkwork and support our work by going to signal.org/donate