From Free Software Directory
Revision as of 13:57, 28 October 2016 by Timhowes (talk | contribs)

(diff) ← Older revision | Approved revision (diff) | Latest revision (diff) | Newer revision → (diff)
Jump to: navigation, search


An app for private communication.

Signal is an app for simple private communication with friends. It supports end-to-end encrypted instant messaging, voice calling and video calling.

Signal uses your device's data connection (WiFi/3G/4G) to communicate securely, optionally supports plain SMS/MMS to function as a unified messenger, and can also encrypt the stored messages on your device.

A desktop app that can be used on Debian-based GNU/Linux distributions has been released. It requires that the user has first registered on Android or iOS.


GitHub page at with more documentation at

Related Projects



Verified by

Verified on


Verified by

Tim Howes <>

Verified on

28 October 2016

Leaders and contributors

Resources and communication

AudienceResource typeURI
Bug tracking, User, DeveloperVCS Repository Webview
Python (Ref)
User, Developer, Help, SupportForum
Ruby (Ref)
DeveloperMailing List Info/Archive
R (Ref)
User, Help, SupportSupport
Blog, User, DeveloperGeneral

Software prerequisites

This entry (in part or in whole) was last reviewed on 19 April 2018.


Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the page “GNU Free Documentation License”.

The copyright and license notices on this page only apply to the text on this page. Any software or copyright-licenses or other similar notices described in this text has its own copyright notice and license, which can usually be found in the distribution or license text itself.