GUI client for XMPP (Jabber) instant messaging protocol

 Tkabber is a GUI client for XMPP (Jabber) instant messaging protocol.
 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".