We have a big news for all privacy lovers , Tor project officially launched its beta version of their new anonymous chat client that works on top of the Tor network.
the team claimed that their app encrypts the content of instant messages, and say the Messenger integrates the “Off-the-Record” (OTR) to encrypt messages and then routes them over Tor network in the same manner as the Browser does for the web.
Image From http://techpp.com , all credits served to them
Tor Messenger client currently supports:
Jabber (XMPP) chat protocol
IRC (Internet Relay Chat)
Its the beta version and they hope to gain both usability and security related feedback so you can download it from here its available in linux ( 32bit ) , linux ( 64bit ) , MAC OS X and Windows.