How to Install Signal Private Messenger Desktop on Ubuntu - Signal is a free encrypted messenger app for mobile (Android and iOS) and desktop (Linux, MacOs, and Windows) developed by Open Whisper Systems. Well, this is good alternative to WhatsApp.

The app uses the Internet to send one-to-one and group messages, which can include files, voice notes, images or videos, and make one-to-one voice.

All of messages and calls are always end-to-end encrypted and painstakingly engineered to keep your communication safe.

Install Signal Desktop App on Ubuntu Linux

The clients are published as free and open-source software under the GPLv3 license. You can verify its security by auditing the code. Signal is the only private messenger that uses open source peer-reviewed cryptographic protocols to keep your messages safe.

Just like WhatsApp and Telegram, Signal uses standard cellular mobile numbers as identifiers.

Install Signal Private Messenger

The desktop version of Signal (electron-based) runs independently. So it makes the app more accessible than distributed through the Chrome Web Store.

Suggested read :

Step 1 - Open terminal via app launcher or simply press Ctrl+Alt+T

Step 2 - Run the following command to add the signal key :

wget | sudo apt-key add -

Step 3 - Add new repository to your Ubuntu desktop

echo "deb [arch=amd64] xenial main" | sudo tee -a /etc/apt/sources.list.d/signal-xenial.list

Step 4 - Resynchronize the package index files :

sudo apt update

Step 5 - Now install the Signal desktop app :

sudo apt install signal-desktop

Install Signal via Snap

The application is available as snap. So this might be the easiest and quickest way to install Signal in Ubuntu.

sudo snap install signal-desktop

Once installed, you can now open the app and scan the QR code from your mobile Signal App for authentication (like WhatsApp).

If you don't have Signal on your Android or iOS device, here are the Signal app links :