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Pidgin is an instant messaging program for Windows, Linux, BSD, and other Unixes. You can talk to your friends using AIM, ICQ, Jabber/XMPP, MSN Messenger, Yahoo!, Bonjour, Gadu-Gadu, IRC, Novell GroupWise Messenger, QQ, Lotus Sametime, SILC, SIMPLE
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, and Zephyr.
Pidgin can log in to multiple accounts on multiple IM networks simultaneously. This means that you can be chatting with friends on AIM, talking to a friend on Yahoo Messenger, and sitting in an IRC channel all at the same time.
Pidgin supports many features of the various networks, such as file transfer, away messages, and typing notification. It also goes beyond that and provides many unique features.
[Previously known as "Gaim".] [Less]
Unified OS X instant messaging platform
X-Chat is a fully-featured graphical IRC client using the GTK toolkit. It can be compiled to use GNOME and Perl scripting.
Kopete is a flexible and extendable multiple protocol instant messaging system designed as a plugin-based system. All protocols are plugins and allow modular installation, configuration, and usage without the main application knowing anything about
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the plugin being loaded. The goal of Kopete is to provide users with a standard and easy to use interface between all of their instant messaging systems, but at the same time also providing developers with the ease of writing plugins to support a new protocol. The core Kopete development team provides a handful of plugins that most users can use, in addition to templates for new developers to base a plugin on. [Less]
Psi is a leading instant messaging / real-time communications client for the Jabber network (using the XMPP protocol). It is cross platform, available for Windows, Mac OS X and X11 (Linux, BSD, Solaris etc.) platforms. It uses the Qt library.
It
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aims to be (and is famous for being) standards compliant and stable. It is also at the cutting edge of XMPP development, with several of the authors very actively involved in the XMPP standards extension process. [Less]
Miranda is the next generation Miranda IM client for Windows.
Alvaro's Messenger is a Tcl/Tk client for MSN Messenger. Its features include multi-language support, smileys, docking support for KDE 3 and GNOME 2 (FreeDesktop compatibility), logging, profiles support, email notification, customizable sounds
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, group management, file transfers with NAT support, and proxy support. Some special features include the possibility of knowing who has deleted you from his/her list, connecting "silently" (appearing invisible), and so on. [Less]
Empathy consists of a rich set of reusable instant messaging widgets, and a GNOME client using those widgets. It uses Telepathy and Nokia's Mission Control, and reuses Gossip's UI. The main goal is to permit desktop integration by providing
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libempathy and libempathy-gtk libraries. libempathy-gtk is a set of powerful widgets that can be embeded into any GNOME application. [Less]
skype4pidgin is a plugin for libpurple programs such as Pidgin or Adium, to be able to use the Skype API to control and use Skype to send IM's
ECF is a framework for building communications functions into Eclipse-based tools and applications. It can be used to create other plugins, tools, or full applications that require asynchronous point-to-point or publish-and-subscribe messaging.
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ECF is also a small set of applications for real-time developer communication, including instant messaging, file sharing, and real-time collaboration. [Less]
Plugin based multi-IM communicator. ncurses or gtk2 (in progress) based GUI.
Support for different protocols: irc, jabber (including gmail), gg (gadu-gadu largest polish IM), tlen, nntp (read only).
Tkabber is a client for the Jabber instant messaging system. It's writen in Tcl/Tk, and works on many platforms (tested on Linux, FreeBSD, NetBSD, Solaris, MacOS X and Windows 98/2000/XP).
OpenWengo is a community project focussed on communication over IP, including VoIP, instant messaging and video phonecalls. Its main product is the Wengophone - a standards-based softphone and multi-protocol IM client.
Coccinella is a free and open-source cross-platform communication tool with a built-in whiteboard for improved collaboration with other people.
Gossip is an instant messaging client for GNOME with an easy-to-use interface, providing users of the GNOME Desktop with a friendly way to keep in touch with their friends. Gossip uses the Jabber protocol.
CenterIM is a fork of CenterICQ, an ncurses-based IM client. It supports ICQ, MSN, AIM, Yahoo, Gadu-Gadu, Live Journal, IRC, RSS and Jabber protocols
emesene is a platform independent instant messaging client for the Windows Live Messenger (tm) network.
emesene is distributed free of charge under the GNU General Public License 2 or any later version.
emesene most interesting features are:
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* Clean and easy to use Interface? with no ads
* File transfers (almost done)
* Custom emoticons sending/receiving/stealing
* Tabbed chatting
* Multilingual interface
* Great customization
* Plugins support
* Messenger Plus! formatting tags support
* Powerful Chat logging
* All the other basic Windows Live Messenger features [Less]
A Jabber/XMPP library written in Tcl.
Licq includes all the basic features of ICQ, like sending/receiving messages, chat, file transfer, contact list with pixmaps and user status, basic/extended user info, adding/editing users from within the GUI, user history, user groups, and new user
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registration. All commands and information are available through a simple and convenient tab dialog. Licq also has a completely configurable user interface with Skin and Icon pack support. It is written in C++ and comes with a GUI plugin using the Qt widget set. Other plugins are also available. [Less]
rVooz is a software platform designed to make contextual connections, or contextions, between people who might not have a priori knowledge of each other; it enables contextual collaboration. It does this when a client application posts context to the
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Salient Server via it's context interface and the Salient Server finds a context match with one or more other users. The Salient Server informs Voozers via the match interface of the match, and depending on the implementation, the Voozer distributes "temporally relevant presence information" among the client applications, or may go further and establish chat, voice, or voice conference sessions.
Context will typically be geo-spatial, structural, or string forms but Salient is extensible so that context definition isn't limited. [Less]
KMess is an alternative MSN Messenger chat client for Linux. It allows Linux users to chat with friends who use MSN Messenger in Windows or Mac OS. The strength of KMess is it's integration with the KDE desktop environment, focus on MSN Messenger specific features and an easy-to-use interface.
Asterisk-IM is a plugin for the Openfire XMPP server that connects your phone with instant messaging.
Asterisk-IM manage your presence when you are on the phone. If you are using a client, that supports the corresponding XMPP extensions, you can also use Asterisk-IM to call your buddies and receive notifications on incoming calls.
shaim is an open-source multi-protocol instant messaging client written in C#.
A Facebook plugin for Pidgin. Lets you send and receive messages using the Facebook Chat protocol from your favourite instant messenger.
Galaxium is an instant messenger application designed for the GNOME desktop. It will allow you to connect to MSN (and other protocols through the use of addins) to communicate with your family, friends and co-workers! It is a cross-platform
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application that uses the Mono and GTK# toolkits for the user interface and protocol handlers. Several plugins are also in the works to bring advanced features like Adium Theme support. [Less]
Jabbin is a Jabber instant messaging client with support for Jingle P2P VoIP, and compatible with Google Talk.
Jabbin is based on Psi and uses Qt. It is available for Windows and Linux.
EKG is an open Gadu Gadu client for *nix platforms.
Ayttm is an open source, multi-protocol instant messenger. It is built using C and Gtk-2 and works across multiple platforms.
Pidgin-paranoia is a plug-in for Pidgin (formerly known as Gaim) that provides information-theoretically secure encrypted conversations using one-time-pads.