Signal Private Messenger

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 calls, and explore a growing set of new features that help you stay connected.
Signal’s advanced privacy-preserving technology is always enabled, so you can focus on sharing the moments that matter with the people who matter to you.nn• Say anything – State-of-the-art end-to-end encryption (powered by the open source Signal Protocol™) keeps your conversations secure.
Privacy isn’t an optional mode — it’s just the way that Signal works.
Every message, every call, every time.nn• Go fast – Messages are delivered quickly and reliably, even on slow networks.
Signal is optimized to operate in the most constrained environment possible.nn• Feel free – Signal is a completely independent 501c3 nonprofit.
Development is supported by users like you.
No advertisements.
No trackers.
No kidding.nn• Be yourself – You can use your existing phone number and address book to securely communicate with your friends.nn• Speak up – Whether they live across town or across the ocean, Signal’s enhanced audio and video quality will make your friends and family feel closer.nn• Whisper in the shadows – Switch to the dark theme if you refuse to see the light.nn• Sound familiar – Choose custom alerts for each contact, or disable noises completely.
Simon & Garfunkel wrote a hit song about it in 1964, and you can experience the sound of silence whenever you want by choosing “None” as your notification ringtone.nn• Picture this – Use the built-in image editing features to sketch, crop, and flip your outgoing photos.
There’s even a text tool so that you can add more words to the 1,000 that your picture is already worth.nnnFor support, questions, or more information, please visit:nhttps://support.signal.orgnnSource code:nhttps://github.com/signalappnnFollow us on Twitter (@signalapp) and Instagram (@signal_app) for all of the latest updates and announcements.