Psi is a program for connecting to the Jabber messaging network. It supports multiple accounts, group chat, and translations . Client/server encryption is supported through SSL.
Psi aims to be a powerful ICQ-like Jabber client for the experienced Jabber user. There are builds available for Windows, Linux, and MacOS X.
Psi is a GPLed instant messaging client for the Jabber (XMPP) protocol which uses the Qt toolkit. It runs on Linux, Microsoft Windows, and Mac OS X. Ready-to-install RPM and deb packages are available for many Linux distributions.