Psi is the premiere Instant Messaging application designed for multiple platforms.

Built upon an open protocol named Jabber, Psi is a fast and lightweight messaging client that utilises the best in open source technologies. Psi contains all the features necessary to chat, with no bloated extras that slow your computer down.

Psi is a software that helps you talk or chat with your friends.

Perhaps you have been considering Jabber, but don't want to abandon your friends? Jabber technologies are highly extensible, so Psi is able to interoperate with other, proprietory messaging systems such as AOL's ICQ and Microsoft's Messenger.

You can keep in contact with your friends, regardless of whether they use AIM, ICQ, MSNM or YahooM. It's even possible to use Internet Relay Chat! *

Unlike other IM clients, Psi is small, fast and responsive. It uses a graphical toolkit called Qt, which takes on the appearance of whichever operating system you run it on. For this reason, Psi doesn't use 'skins'. We'd rather it blend with your desktop like any other application.

Psi has full support for Unicode. Unicode allows Psi to send and receive messages in other languages, even ones that aren't based upon the English letterset. In fact, you are able to use Psi in your choice of eight different languages, with more on the way!

Cross-platform compatibility is important to the Psi development team; we believe that you should be able to use whichever operating system you wish. In keeping with this belief, we have a version for each of the three major OS's.

What's New in This Release: [ read full changelog ]

· Voice calls (Jingle RTP).
· Basic XMPP URI handler.
· Ability to permanently trust certificates at connect time.
· Mini command system (Ctrl+7 in chat window).
· Various bugfixes.