Download Signal for Android, iOS, Linux, macOS, and Windows.

Signal is the successor of the RedPhone encrypted voice calling app and the TextSecure encrypted texting program.

Signal is a messaging app with privacy at its core. It is free and easy to use, with strong end-to-end encryption that keeps your communication completely private.

Dec 2, 2025 · Instead of accepting life in a fishbowl, use Signal to keep your communication private and secure. The free, open-source app protects your calls, messages, and video chats …

Dec 19, 2025 · Millions of people use Signal every day for free and instantaneous communication anywhere in the world. Send and receive high-fidelity messages, participate in HD voice/video …

The Pentagon’s acting inspector general has announced that he will review Defense Secretary Pete Hegseth’s use of the Signal messaging app to convey plans for a military strike against …

State-of-the-art end-to-end encryption (powered by the open source Signal Protocol) keeps your conversations secure. We can't read your messages or listen to your calls, and no one else …

Dec 19, 2025 · Signal is a messaging app with privacy at its core. It is free and easy to use, with strong end-to-end encryption that keeps your communication completely private.

To use the Signal desktop app, Signal must first be installed on your phone.

Signal users can send private messages and make secure calls to other Signal users anywhere in the world for free over the internet. All Signal-to-Signal communication is private and end-to …