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Psi ... Are you tired of the barriers between typical Instant Messaging Networks? Have you had enough of having to use five chat programs to talk to all your friends? These problems can be easily solved by switching to the Jabber network!

Psi - an awesome client for the Jabber network.

What's New

Version 0.15:

Note: Psi 0.15 uses a new profile data format. Data from 0.14 and prior will be migrated to the new format when you run 0.15 for the first time.

  • Merge many changes from Psi+.
  • New message history browser.
  • New, fast contact list window.
  • TURN proxying for voice calls.
  • Store data in more standardized locations based on the platform.
  • No longer more...


Mac OS X 10.5 or later

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Psi User Discussion

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Negritude Member IconComment+1081

When I search for "Pidgin", why does MU direct me here?

Reply1 reply
Version 0.14

I'm redirected to http://www.macupdate.com/app/mac/26034/instantbird :)

BTW, the first release candidate of 0.15 is available (as of August 27, 2012)

ozean Member IconComment+59

New in 0.13

- Voice calls for Mac OS X and Linux (Jingle RTP).

- Basic XMPP URI handler.

- Ability to permanantly trust certificates at connect time.

- Mini command system (Ctrl+7 in chat window).

- Various bugfixes.

(taken from the forum: http://forum.psi-im.org/thread/5308 )

Reply0 replies
Version 0.13rc1
Dogbert1 Member IconComment+9

This build (0.12.1) does not appear to be universal. It shows the circle with slash icon on a ppc when trying to install.

Reply1 reply
Version 0.12.1

Thats correct! please update the version, so that PPC users can install it!

haleakalari Member IconReview+59

sexy. fast. strong. it's like having a reishi log for my tongue. it's the chims to my chams. point is, psi is powerful and dynamic, like pleurotus ostreatus.

Reply0 replies
Version 0.12.1
zofo Member IconComment+9

interesting... was this a class project or something?

I don't understand what one would do with this seeing that Adium does Jabber as well and is Universal.

Reply5 replies
Version 0.12rc1

... Adium does Jabber as well ...

Adium does part of Jabber, to the extent you can use it to log in to a Jabber server and talk to other Jabber users.

Adium does not, however, support some features of Jabber/XMPP, like service discovery. So if you're using XMPP transports for sAIM and Yahoo interoperability and want to use Adium, you have to find a client that supports transport discovery (like Psi) to set up your contacts. There are other services besides the gateway transports, too: multi-user chat, the Jabber User Directory and at least one presence server. My understanding is that libpurple/Pidgin (hence Adium) will get transport discovery/registration in the future, but Psi's been doing it for a while.

Jabber.org used to have a client comparison chart, but it seems to be missing now. That's a shame, because it provided a good way to see which clients offered the very best support for XMPP, vs. "you can chat with it."

Oh, Psi also supports PGP (or at least GnuPG) encryption. Some people are heavily invested in that, and Adium does not yet support it.

... and is Universal.

Psi is also a Universal app. They need to update the information. I've got the current version sitting here in my apps folder and it's a UB.

Psi is a bit of an odd fit on the Mac, because Qt apps have that same "this isn't quite right" feel that Java apps are often accused of having. But for a Jabber/XMPP user who is heavily invested in all the features XMPP offers, there's not much choice on the Mac besides, perhaps, Spark from Jive.


Yes, Adium is a nice IM client, but that doesn't mean it has to be the only one. PSI isn't as customizable or "pretty" as Adium, but it is a good client. Stop being so demeaning towards other programs. Calling Psi "a class project" is insulting and inappropriate. Adium has its own problems and I prefer to have alternatives. Thanks, Psi developers.

Peter da Silva (developer)

Also, Adium requires 10.4 these days.


Precisely my own thinking, when I decided to get a Dell instead of a Mac.

Peter da Silva (developer)

Your logic is too subtle for me, longboy.

Anonymous Member IconReview

im not sure if it's just me but it seems the encryption toggle is not working On/Off it could be i am useing a Jabber server that don't use the encryption it's that or this program needs a little fixing up... other than that it seems to be working nice and fast.

Reply0 replies
Version 0.93
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> 5 1


Current Version (0.x)


Downloads 25,266
Version Downloads 7,219
Type Internet / Chat
License Free
Date 04 Oct 2012
Platform Intel 64 / OS X / Intel 32
Price Free