WeeChat is a fast, light and extensible chat client. It runs on many platforms (including Linux, BSD and Mac OS).
WeeChat is:

- modular: a lightweight core with plugins around

- multi-protocols: IRC and Jabber (other soon)

- extensible: C plugins and scripts (Perl, Python, Ruby, Lua, Tcl and Scheme)

- free software: released under GPLv3 license

- fully documented: user's guide, API, FAQ,.. translated in many languages
I moved to weechat from irssi because it supports multiple scripting languages such as python and ruby.
by phluxeternus December 21, 2012
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