• Telegram icon

    Telegram

    Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free. It is like SMS, but more powerful....

    Open Source Mac Windows Linux Web / Cloud Android iPhone ... Android Tablet iPad Apple Watch Android Wear

  • Mumble icon

    Mumble

    Mumble is an open source, low-latency, high quality voice chat software primarily intended for use while gaming.

    Open Source Mac Windows Linux iPhone BSD iPad

  • Adium icon

    Adium

    Adium is a free and open source instant messaging application for Mac OS X, written using Mac OS Xs Cocoa API, released under the GNU...

    Open Source Mac

  • Slack icon

    Slack

    Slack brings all your communication together in one place. It’s real-time messaging, archiving and search for modern teams.

    Freemium Mac Windows Linux Web / Cloud Android iPhone ... Apple Watch

  • Viber icon

    Viber

    Viber is a mobile application that lets you make free phone calls and send text messages to anyone who also has the application...

    Freemium Mac Windows Linux Android iPhone Blackberry ... Windows RT Android Tablet Windows Phone

  • Trillian icon

    Trillian

    Trillian is an instant messaging app that works on phones, tablets, and desktops while keeping your chats neatly synchronized between...

    Freemium Mac Windows Linux Web / Cloud Android iPhone ... Blackberry iPad

  • Tox icon

    Tox

    Send messages, files, create groups and make Tox to Tox audio and video calls. Securely.

    Open Source Mac Windows Linux Android iPhone Android Tablet ... BSD

  • Jitsi icon

    Jitsi

    Jitsi (previously SIP Communicator) is an audio/video and chat communicator with full end-to-end encryption that supports protocols...

    Open Source Mac Windows Linux Web / Cloud Android BSD

  • Signal icon

    Signal

    TextSecure and RedPhone have been merged to create Signal! Using Signal, you can communicate instantly while avoiding SMS fees...

    Open Source Mac Windows Linux Android iPhone Chrome

  • Glip icon

    Glip

    Glip is instant messaging for teams and businesses to communicate and get work done at the same time. In Glip you work where your...

    Freemium Mac Windows Web / Cloud Android iPhone iPad

  • Nimbuzz icon

    Nimbuzz

    Nimbuzz offers limited availablility free calls and limited availability free text messaging for users via 3G and WiFi. Calls to other...

    Freemium Mac Windows Web / Cloud Android iPhone Java Mobile ... S60 HP webOS Blackberry Android Tablet Windows Phone iPad Chrome Kindle Fire

  • Linphone icon

    Linphone

    Linphone is an internet phone or Voice Over IP phone (VoIP). With Linphone you can communicate freely with people over the internet...

    Open Source Mac Windows Linux Web / Cloud Windows Mobile Android ... iPhone Blackberry Android Tablet BSD Windows Phone iPad Blackberry 10 Xfce

  • LINE icon

    LINE

    LINE is a Japanese proprietary application for instant messaging on smartphones and PCs. Line users exchange text messages, graphics...

    Freemium Mac Windows Web / Cloud Windows Mobile Android iPhone ... Android Tablet Windows Phone iPad

  • Discord icon

    Discord

    All-in-one voice and text chat for gamers that’s free, secure, and works on both your desktop and phone.

    Free Mac Windows Web / Cloud Android iPhone

  • FaceTime icon

    FaceTime

    FaceTime is a video calling software feature developed by Apple for the iPod Touch 4, iPhone 4, and Mac OSX. FaceTime makes it...

    Free Mac iPhone iPad

  • ICQ icon

    ICQ

    ICQ is one of the oldest instant messengers. First developed by the Israeli company Mirabilis, sold to AOL, sold again and currenly...

    Free Mac Windows Linux Web / Cloud Windows Mobile Android ... iPhone Java Mobile S60 Blackberry Android Tablet Windows Phone iPad Kindle Fire

  • Ventrilo icon

    Ventrilo Discontinued

    Ventrilo is the next evolutionary step of Voice over IP (VoIP) group communications software.

    Free Mac Windows

  • Ring icon

    Ring

    Ring is a secure and distributed voice, video and chat communication platform that requires no centralized server and leaves the power...

    Open Source Mac Windows Linux Android

  • ooVoo icon

    ooVoo

    Free high quality video chat and video conferencing from ooVoo. Talk live face-to-face with up to 6 people at once.

    Freemium Mac Windows Android iPhone Android Tablet Windows Phone ... iPad Kindle Fire

  • Psi+ icon

    Psi+

    Psi+ is a development branch of Psi IM XMPP/Jabber client. Psi is a cross-platform powerful XMPP/Jabber client (Qt, C++) designed...

    Open Source Mac Windows Linux BSD

  • Wire icon

    Wire

    Wire is simple, beautiful conversations on your phone, tablet and desktop. Talk or message with friends, message with groups. Share...

    Free Mac Windows Web / Cloud Android iPhone Chrome OS ... Android Tablet iPad

  • Zoiper icon

    Zoiper

    Zoiper IAX & SIP multilanguage and multiplatform (Windows, Linux and Mac OS X) softphone is a VoIP soft client, meant to work with...

    Freemium Mac Windows Linux Web / Cloud Android iPhone ... Windows Phone

  • Vsee icon

    Vsee

    Extremely low bandwidth video collaboration software that supports application sharing, desktop sharing, file sharing, and PTZ camera...

    Free Personal Mac Windows

  • QuteCom icon

    QuteCom Discontinued

    QuteCom is a community of enthusiasts and developers, creating free software products related to communication over IP. The flagship...

    Open Source Mac Windows Linux

  • Beamium icon

    Beamium

    Beamium makes it possible to present online from browser to browser. Simply upload your PDF presentation or document with one click...

    Freemium Mac Windows Linux Web / Cloud Windows Mobile Android ... iPhone Java Mobile S60 HP webOS Blackberry Chrome OS Windows RT Android Tablet BSD Windows Phone iPad Self-Hosted Blackberry 10 PlayBook Apple Watch tvOS Android Wear Kindle Fire Haiku Pebble

  • Coccinella icon

    Coccinella

    Coccinella is a free and open-source cross-platform instant messaging client with a built-in whiteboard for improved collaboration...

    Open Source Mac Windows Linux BSD

  • Bleep icon

    Bleep

    Private instant messaging via secure, distributed technology. Download & Go Enjoy the benefits of having an account without...

    Free Mac Windows Android iPhone Android Tablet iPad

  • Actor icon

    Actor

    Actor Messenger is an encrypted messaging created by a former developer of telegram.

    Open Source Mac Windows Linux Web / Cloud Android iPhone ... iPad

  • Dolby Axon icon

    Dolby Axon

    Introducing Dolby Axon, Surround Sound voice chat for games and gamers. Dolby Axon provides superior voice quality that’s free of...

    Free Mac Windows

  • Tkabber icon

    Tkabber

    Tkabber is a Free and Open Source client for the Jabber instant messaging system. Its writen in Tcl/Tk, and works on many platforms...

    Open Source Mac Windows Linux BSD

  • Kiax icon

    Kiax

    Small program mainly aimed to provide a simple user interface for making VoIP calls with Asterisk PBX (an open source VoIP PBX).

    Open Source Mac Windows Linux

  • Pinger icon

    Pinger

    Pinger lets you text and talk free with the people you care about most, anywhere on the planet. Tap a picture and you'll see all...

    Free Personal Mac Windows Web / Cloud Android iPhone

  • Brosix icon

    Brosix

    Brosix is a secure Instant Messaging and collaboration tool, ideal for everyday communication for business and leisure. Two...

    Free Personal Mac Windows Linux Web / Cloud Android iPhone ... Android Tablet iPad

  • JumpChat icon

    JumpChat

    Video chat, file share, and screen share without the need for accounts.

    Free Mac Windows Linux Android iPhone iPad