Subcategory: Instant Messengers
Platform: BSD, Linux, OS X, Solaris, UNIX-like, Windows
Programing language: Tcl, Tk
First release: 2002
Tkabber – a free and open source GUI client for the Jabber instant messaging system. It’s writen in Tcl/Tk, and works on many platforms, such as Linux, FreeBSD, NetBSD, Solaris, MacOS X and Windows 98/2000/XP.
It provides full support of basic XMPP specifications as well as many protocol extensions (XEPs), such as multi-user conferencing, file transfers, extensive handling of privacy lists and much more. Tkabber is written in Tcl/Tk and thus is easily extensible.
Also a rich set of Tkabber external plugins is available in the package named “tkabber-plugins”.
The project founder is Alexey Shchepin.