
Gaim is a multi-protocol instant messaging (IM) client for Linux, BSD, MacOS X, and Windows. It is compatible with AIM (Oscar and TOC protocols), ICQ, MSN Messenger, Yahoo!, IRC, Jabber, Gadu-Gadu, and Zephyr networks.
Development Status: Production/Stable
License: GNU General Public License (GPL)
Operating System: Windows, BSD, Linux, Others
Ayttm is an instant messaging (aka chat) client that provides all-in-one chat functionality for several major instant messaging services from one simple program. Ayttm "Contacts" allow you to refer to several accounts of the same person from a single contact name, making it one of the cleanest and simplest clients to use.
Development Status: Beta
License: GNU General Public License (GPL)
Operating System: 32-bit MS Windows (NT/2000/XP), All 32-bit MS Windows (95/98/NT/2000/XP), All BSD Platforms (FreeBSD/NetBSD/OpenBSD/Apple Mac OS X), All POSIX (Linux/BSD/UNIX-like OSes), Linux, Win2K, WinXP
'Ytalk' is a multi-user talk program that works like the UNIX talk program but allows for multiple connections and shell sessions inside the talk window. It is compatible with older UNIX talk clients and daemons. You can save any side of the current conversion and define aliases for addresses or hostnames.
Development Status: Production/Stable
License: GNU General Public License (GPL)
Operating System: Unix
yChat is an experimental, XML-configurable, fast, very portable, multi-platform Web-based chat server written in C++ and a little subset of C which supports secure SSL sockets using OpenSSL, MySQL databases and is compatible with almost all browsers that support frames and JavaScript.
Development Status: Production/Stable
License: GNU General Public License (GPL)
Operating System: POSIX, POSIX :: BSD, POSIX :: BSD :: BSD/OS, POSIX :: BSD :: FreeBSD, POSIX :: BSD :: NetBSD, POSIX :: BSD :: OpenBSD, POSIX :: Linux, Unix
Gale is a messaging system resembling Zephyr in UI and social characteristics, but IRC in architecture, with some features of its own. It supports the use of public-key cryptography for privacy and authentication.
Development Status: Beta
License: GNU General Public License (GPL)
Operating System: Platform Independent
KLinPopup is a small program to receive and send winpopup messages like Windows(tm) net send.
Development Status: Production/Stable
License: GNU General Public License (GPL)
Operating System: Linux
yChat is a Web-based chat server daemon which is compatible with all browsers that support frames and Javascript.
Development Status: Beta
License: GNU General Public License (GPL)
Operating System: POSIX
Multiprotocol plugin-based instant messenger for X11 (optionaly support KDE), Windows and MaxOS X.
Development Status: Beta
License: GNU General Public License (GPL)
Operating System: MacOS X, Windows, POSIX
Jabbah is simple library with very easy to understand API for jabber communicators. Its aim is to implement whole XMPP protocol and as many JEPs as possible.
Development Status: Pre-Alpha
License: GNU Lesser General Public License (LGPL)
Operating System: MacOS X, Windows, Linux
This is a collection of plugins for Miranda Instant Messenger. If you want to learn more about Miranda IM please visit the official website at http://www.miranda-im.org/.
Development Status: Mature
License: GNU General Public License (GPL)
Operating System: Windows
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