Akeni - A client that provides a familiar, MSN Messenger like, interface to Jabber communications.
BuddySpace - Open source Jabber-based instant messenger written in Java that adds customisable graphical metaphors for presence.
Centova Instant Messenger - Full-featured, cross-platform instant messaging client which requires no software installation, running entirely from a web browser.
Chatopus - Jabber/XMPP client on Palm OS platform. Supports transports and real-time news via RSS feeds.
Coccinella - A client with whiteboard communication. Windows, Mac and Unix/Linux support.
Enigma Squared - Java2 compliant client featuring plugins and focusing on user friendliness and ease-to-use.
Exodus - A client that is developed as a successor to winjab, it aims to be a end user client with a smaller interface.
Freetalk - Freetalk is an extensible console client.
Gabber - A robust and premiere GNOME Jabber client. Written in C++ using GTK+, Gnome and the Jabberoo C++ Jabber client library.
Gamers Own Instant Messenger - GOIM is a full featured client based on Eclipse RCP which can also be used as an Eclipse Plugin.
imov Messenger - A Windows CE client for the Jabber instant messaging system.
Jabber Web Chat - A web-based client written using AJAX technology. It supports basic jabber instant messaging, roster management and groupchats based on the MUC protocol.
JabberBeans - Standalone Java client application and applet which aims to create a base layer for applications to be "Jabberised" quickly and easily.
JabberFoX - A client for Mac OS X. An open source instant messaging system fully based on XML.
Pandion - Client designed for usability, standards compliance and security, including automatic connection encryption, custom emoticons, avatars and text markup.
Psi Jabber Client - Psi is a multi platform client currently available for Windows, Linux and Mac. It mimics the looks of Licq.
QTJim Project - Cute client using the QT toolkit. Freely available, licensed under the GPL.