jabber.at is a free and open Jabber/XMPP server. We also run the domains xmpp.zone and jabber.zone. We are one of the larger and better known servers in the network. We try to lead the way in Security, Features, Support and in the Jabber/XMPP community.

The server is run by the Fachschaft Informatik, the students union for computer science students at the Technical University of Vienna (ÖH). It is managed by Mathias Ertl and David Kaufmann.