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Signal Desktop

Signal Desktop is a free, open-source chat app for Windows, macOS and Linux. A private messenger for Windows, macOS, and Linux. It has 16,629 GitHub stars and is released under the AGPL-3.0 license, and people use it instead of WhatsApp.

github.com/signalapp/Signal-Desktop (opens in a new tab)

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About Signal Desktop

Signal Desktop links with Signal on Android or iOS and lets you message from your Windows, macOS, and Linux computers. You can find answers to a number of frequently asked questions on our support site. The community forum is another good place for questions.

Replaces

Commercial software people commonly use Signal Desktop instead of.

  • WhatsApp

Similar apps

More open-source chat apps

All chat & communication

FAQ

Signal Desktop FAQ

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Is Signal Desktop free and open source?

Yes. Signal Desktop's source code is public on GitHub under the AGPL-3.0 license, which is OSI-approved or FSF-free, so you can use, copy and change it for free.

How do I install Signal Desktop?

Download the installer for Windows, macOS and Linux from its GitHub Releases page (latest: v8.32.0) or the project website.

Can Signal Desktop replace WhatsApp?

Signal Desktop is commonly used as a free alternative to WhatsApp. Features differ, so check that it opens the file formats and covers the workflows you rely on before switching.