Signal Private Messenger

Signal is an instant messaging app developed by Open Whisper Systems. This nonprofit software company develops open-source applications and has been supported at various times by Edward Snowden. The app aims to guarantee safe and completely private communication between its …

Signal is an instant messaging app developed by Open Whisper Systems. This nonprofit software company develops open-source applications and has been supported at various times by Edward Snowden. The app aims to guarantee safe and completely private communication between its users.

As soon as you start Signal for the first time, you'll notice its security features. There's no independent login, no username or password – the app uses your phone number and your address book, so in theory, you can't pretend to be someone you're not.

The app uses end-to-end encryption, protecting every message you send to your contacts. Whether you're talking directly to an individual or a group, all your messages are always kept absolutely private. Not even Signal's servers have access to the information of your groups.

As you'd expect, Signal lets you send all kinds of files, including pictures, videos, and audio, always protecting them with the same protocol it uses for text messages. Everything is kept absolutely safe.

Signal is a secure and private instant messaging client that provides an additional layer of safety that other similar apps just don't have. WhatsApp, LINE and even Telegram might have more users, but they are not as safe as this app.

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.

• 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.

• Go fast – Messages are delivered quickly and reliably, even on slow networks. Signal is optimized to operate in the most constrained environment possible.

• Feel free – Signal is a completely independent 501c3 nonprofit. Development is supported by users like you. No advertisements. No trackers. No kidding.

• Be yourself – You can use your existing phone number and address book to securely communicate with your friends.

• 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.

• Whisper in the shadows – Switch to the dark theme if you refuse to see the light.

• 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.

• 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.


For support, questions, or more information, please visit:
https://support.signal.org

Source code:
https://github.com/signalapp

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