Instant Messengers

Adium
Adium
A free and open source instant messaging application for Mac OS X that can connect to AIM, XMPP (Jabber), ICQ, IRC and more. Based on the…
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Android Messages Desktop
Android Messages Desktop
A cross-platform application which lets you run the Android Messages as a desktop app. Features: System notifications when a text comes in…
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Antox
Antox
An Android 4+ client for project Tox – secure peer to peer messaging. It aims to bring the full multimedia support Tox offers to your…
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Caprine
Caprine
An unofficial and privacy focused, open source Facebook Messenger app with many useful features…
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Citadel
Citadel
An open source collaboration messaging and groupware suit which is designed to run on open source operating systems such as Linux or…
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CoyIM
CoyIM
A standalone chat client that focuses on safety and security. It is a self-contained program that runs on Windows, Linux and macOS. CoyIM…
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Delta Chat
Delta Chat
An open source chat application that sends messages via e-mails, encrypted if possible, with Autocrypt. You do not have to sign up anywhere, just use…
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Discord
Discord
A proprietary and free to use VoIP client designed for gaming communities, that specializes in text, video and audio communication between users…
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EKG2
EKG2
An open source, multi-platform, multi-protocol, and plugin-based, instant messenger with a Gtk+ 2 GUI or a console UI, for UNIX-like operating…
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Empathy
Empathy
A messaging program which supports text, voice, video chat, and file transfers over many different protocols. You can tell it about your accounts on all..
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Gajim
Gajim
A full featured and easy to use XMPP/Jabber client which works nicely with GNOME, but does not require it to run. Jabber allows users to use…
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gomuks
gomuks
a terminal based Matrix client written in Go with mautrix-go and mauview. Keyboard shortcuts: Ctrl and Alt are interchangeable in most…
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Google Hangouts
Google Hangouts
Google Hangouts (formerly known as Google Talk) – a free messenger for traditional text and video chat using a microphone and…
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Jami
Jami
A free software for universal communication which respects the freedoms and privacy of its users. Jami is completely peer-to-peer and…
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Jitsi
Jitsi
Jitsi (previously: SIP Communicator) – a set of open-source projects that allows you to easily build and deploy secure video…
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jTox
jTox
a simple JVM Tox GUI client which uses JavaFX…
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Kadu
Kadu
An open source Gadu-Gadu and Jabber/XMPP protocol Instant Messenger client for Linux, BSD and Windows…
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Kopete
Kopete
an instant messaging client designed to be modular and plugin based. The goal of Kopete is to provide users with a single easy-to-use way to…
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Linphone
Linphone
Linphone (Linux phone) – an open source SIP phone for voice/video calls and instant messaging, and is available for mobile and desktop…
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LoquiIM
LoquiIM
A mobile messaging app that allows users to use their chat accounts from different providers with just one simple interface. The app is currently…
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Messenger for Desktop
Messenger for Desktop
A simple & beautiful desktop client for Facebook Messenger. Chat without distractions on OS X, Windows and Linux. Not affiliated with Facebook…
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MiniTox
MiniTox
A minimal client written for toxcore. It’s an example of tox client implementation and also a toy which new developers coming to tox can play…
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Miranda NG
Miranda NG
Miranda NG – a successor of a popular multi-protocol instant messaging client for Windows – Miranda IM. It is very light on system resources…
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ooVoo
ooVoo
A free video chatting and messaging app that was launched back in 2007. It was one of the first apps that introduced the feature of video…
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Pidgin
Pidgin
Pidgin (formerly named Gaim) – a chat program which lets you log in to accounts on multiple chat networks simultaneously. This means that you…
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Pork
Pork
A console based client for the AOL Instant Messenger service that uses the ncurses screen library. Pork is intended to be fast, useable, and stable…
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Psi
Psi
A free instant messaging application designed for the XMPP network. Fast and lightweight, Psi is fully open-source and compatible with Windows…
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qTox
qTox
A chat, voice, video, and file transfer instant messaging client using the encrypted peer-to-peer Tox protocol. Tox is a peer-to-peer…
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QuteCom
QuteCom
QuteCom (previously: WengoPhone) – a free, open source software SIP-compliant VoIP client developed by the QuteCom…
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Ring
Ring
Ring (prevoiusly: SFLphone) – a free software for universal communication which respects the freedoms and privacy of its users. It is published under…
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Signal
Signal
A messaging app for simple private communication with friends. Signal uses your phone’s data connection (WiFi/3G/4G) to communicate securely…
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Skype
Skype
An application which lets users to make voice or video calls and keep in touch via an instant message system. It is available for many devices and…
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TeamTalk
TeamTalk
A software conferencing system which enables a group of people to collaborate and share information. During a conference people can talk…
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Telegram
Telegram
An open source messaging app with a focus on speed and security which is available for several platforms, such as: Linux, OS X, Windows, Android…
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Tkabber
Tkabber
A free and open source GUI client for the Jabber instant messaging system. It’s writen in Tcl/Tk, and works on many platforms, such as Linux,…
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Tok
Tok
An easy-to-use application for peer-to-peer communication. We use end-to-end encryption technologies to secure your conversations. With TOK, you…
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ToTok
ToTok
ToTok – a free, fast and secure application for Android users which offers unlimited HD video and voice calls. Features: Unlimited high-quality…
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TOR Messenger
TOR Messenger
A cross-platform chat program that aims to be secure by default and sends all of its traffic over Tor. It supports a wide variety of transport networks…
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Toxer
Toxer
Toxer – a messenger user interface for desktop systems. Toxer provides a Qt/QML basis to create gorgeous looking Tox applications…
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Toxic
Toxic
A ncurses-based Tox client which offers an instant messaging and video chat features. It is a text based application…
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Toxygen
Toxygen
Toxygen – a powerful cross-platform Tox client written in pure Python3 with a lot of unique features such as plugins and faux offline file transfers….
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TRIfA
TRIfA
TRIfA – an open source, a Tox reference implementation for Android and a Tox client for Android. It uses the peer-to-peer…
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uTox
μTox
A lightweight TOX client with full support for chat, file transfers, audio/video calling, and desktop sharing (both as video and inline…
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Venom
Venom
A modern Tox client for the GNU/Linux desktop. Features: Encrypted profiles, Secure, private messaging, Read receipts, Contact aliases…
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Viber
Viber
a free and multi-platform messenger for voice and video conferencing, which also allows you to send text messages and image files at the same time…
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WhatsApp
WhatsApp
A free messaging and VoIP app available for iPhone and other smartphones, and desktop/laptops running under Windows or OS X. WhatsApp uses…
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Whatsie
Whatsie
A simple & beautiful desktop chat client for WhatsApp Web for Linux, Windows and OS X platforms. Not affiliated with WhatsApp or Facebook…
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Wire
Wire
An open-source, encrypted collaboration suite featuring messenger, voice calls, video calls, conference calls, file-sharing, and external…
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