Trillian is a fully featured, stand-alone, skinnable chat client that supports AIM, ICQ, MSN, Yahoo Messenger, and IRC. It provides capabilities not possible with original network clients, while supporting standard features such as audio chat, file transfers, group chats, chat rooms, buddy icons, multiple simultaneous connections to the same network, server-side contact importing, typing notification, direct connection (AIM), proxy support, encrypted messaging (AIM/ICQ), SMS support, and privacy settings.

What`s New for 3.1:
- Improved speed
- Bug fixes
- Biography (AIM Profiles)
- Universal Plug-and-Play (UPnP)
- On the fly link/emoticons
- Font face support in IMs
- Undo in edit area
- Orphaned contacts (no more merging)
- Many IRC enhancements
- Better Yahoo file transfers
- Identities (per section Biography/Icons)