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 …

"Signal", Signal logos, and other trademarks are trademarks or registered trademarks of Signal Technology Foundation in the United States and other countries (more info here).

"Signal", Signal logos, and other trademarks are trademarks or registered trademarks of Signal Technology Foundation in the United States and other countries (more info here).

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 …

Signal is committed to your privacy. Signal runs on donations as a nonprofit. Donate here!

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.

Signal for Android Download for Android Or visit signal.org/install from your phone

Signal is committed to your privacy. Signal runs on donations as a nonprofit. Donate here!

Signal for iOS Download for iPhone or iPad Or visit signal.org/install from your phone

Getting Started Understand the basics of Signal on Android, iOS, and Desktop. Features Explore rich features of private messaging. Security This section contains common questions …