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

Unified Messaging is awesome! Disa is your new messaging hub. Conversations from different services can seamlessly be joined t ...

Miranda IM is the smaller, faster, easier instant messenger with support for multiple protocols. Designed from the ground-up t ...

A simple & beautiful app for Facebook Messenger. Chat without distractions on any Operating System.

qutIM - free open-source multiprotocol ( ICQ, Jabber/GTalk/Ya.Online/LiveJournal.com, Mail.Ru, IRC ) instant messenger for Win ...

Franz is a free messaging app / former Emperor of Austria and combines chat & messaging services into one application. Fra ...

Chat everywhere! IM+ is the most widely used mobile IM app! Connect all-in-one to MSN, Yahoo!, Google Talk, AIM, Jabber, ICQ, ...

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

Fire is a multi-protocol instant messenger client for Mac OS X based on freely available libraries for each service. Currently ...

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

Message and video chat with your friends and family for free.

Features

• Make high-quality video and voice calls on Android and ...

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

Kopete is an instant messenger supporting AIM, ICQ, MSN, Yahoo, Jabber, IRC, Gadu-Gadu, Novell GroupWise Messenger, and more. ...

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