• Skype icon

    Skype

    Skype is the most popular free voice-over IP and instant messaging service globally. It allows users to text, video and voice call...

    Freemium Mac Windows Linux Web / Cloud Android iPhone ... Blackberry Windows RT Android Tablet BSD Windows Phone iPad Apple Watch Android Wear

  • Pidgin icon

    Pidgin

    Pidgin is an easy to use, multi-protocol chat client client used by millions. Connect to AIM, MSN, Yahoo, XMPP, and more chat networks...

    Open Source Mac Windows Linux BSD Xfce

  • 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

  • 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

  • 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

  • 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

  • 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

  • Empathy icon

    Empathy

    Empathy is a messaging program which supports text, voice, video chat, and file transfers over many different protocols. You can tell...

    Open Source Linux 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

  • 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

  • Gajim

    The goal of Gajim is to provide a full featured and easy to use Jabber client. Gajim works nicely with GNOME, but does not require it...

    Open Source Windows Linux BSD Xfce

  • 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

  • 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

  • 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

  • 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

  • JumpChat icon

    JumpChat

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

    Free Mac Windows Linux Android iPhone iPad

  • Zulip icon

    Zulip

    Powerful open source group chat.

    Open Source Linux BSD Self-Hosted

  • Ayttm icon

    Ayttm

    Ayttm is an instant messaging (aka chat) client that provides all-in-one chat functionality for several major instant messaging...

    Open Source Windows Linux BSD

  • QuickMSG icon

    QuickMSG

    QuickMSG is a secure messaging format and an Android App of the same name. With it you can send messages either to other contacts...

    Open Source Linux Android

  • MXit icon

    MXit

    MXit is a free, cheap to use, instant messenger for almost every phone on the earth. From chatrooms, games and shopping to movie...

    Free Mac Windows Linux Windows Mobile Android iPhone ... Java Mobile S60 Blackberry Android Tablet Windows Phone iPad Adium Pidgin

  • Toky icon

    Toky

    Toky is an easy to setup phone support system for entrepreneurs and small business.

    Free Mac Linux Web / Cloud Android Android Tablet Chrome ... Facebook

  • Camfrog icon

    Camfrog

    Free live webcam video chat room software for multiple desktop platforms including mobile platforms like iOS and Android. Make...

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

  • Qnext icon

    Qnext

    Qnext unifies communication, broadcasting & sharing. Universal Instant Messenger (MSN, Yahoo!, AIM, ICQ, Jabber, iChat &...

    Free Personal Mac Windows Linux

  • Spreed icon

    Spreed

    Spreed is the worldwide unified web conferencing service offering integrated web and telephone conferencing. It is based on Flash...

    Commercial Mac Windows Linux Web / Cloud

  • Hubl.in icon

    Hubl.in

    Hublin is a free and open source videoconference software provided as a SaaS on https://hubl.in. It allows to create videoconference...

    Free Mac Windows Linux Android Android Tablet

  • Gyach Discontinued

    Gyach is a GTK+ based Yahoo! Chat client.

    Open Source Linux BSD