Messenger for Desktop is described as 'Wrapper for the official client messenger.com. Therefore it works like a regular browser which can only navigate to the messenger.com web app. MFD doesn't touch your messages, account or personal data. All that is handled securely by Facebook' and is a instant messenger in the social & communications category. There are more than 50 alternatives to Messenger for Desktop for a variety of platforms, including Windows, Linux, Mac, Android and iPhone apps. The best Messenger for Desktop alternative is Telegram, which is free. Other great apps like Messenger for Desktop are Element, Pidgin, Conversations and Adium.
BBM Enterprise enterprise messenger offers faster communication, collaboration and decision making while providing enhanced security over corporate data.
Canada
Swift is an elegant, secure, adaptable and intuitive XMPP client, with features that make it suitable for a wide range of use scenarios.
United Kingdom
GV Connect is an unofficial iPhone/iPod Touch application for Google Voice. It stores your account password securely in your device's keychain for faster logins - communication is done via secure connections (SSL) to the Google Voice servers and no contact information is...
United States
R&Q is a little instant messaging client for the ICQ protocol, fork of Rejetto's &RQ. It is simple, fast, takes a little more than 1 MB disk space and doesn't need setup.
Slovakia
EU
AQQ is a Polish (but available in English) multiprotocol instant messenger with support of: AQQ, Jabber, Gadu-Gadu, Tlen and ICQ. It has many great features like: one tabbed message window for all conversations; quick search for contacts; file sending (even through FTP thanks to...
PolandEU
GermanyEU
Nettalk is a powerful but easy to use free (open source) IRC-client for Windows. The smart user interface is based on Windows standards, so it is easy to get used to it. The following languages for the interface are available: English, Spanish, Dutch, Russian, Chinese, Hungarian...
leafChat is an IRC client for Windows, Mac OS X, and Linux.
Chat with your friends using popular IRC networks. leafChat has a friendly, clean interface that doesn't get in the way of your conversations. Connect to multiple servers at once on the same screen, so that it'.
jsIRC is written using Socket.IO, node.js, jQuery Title Alert and Sencha ExtJS, relying on string.js, Lo-Dash and PhantomJS.
