A universal instant messaging (IM) program
Development toolkit for Web Services and XML data bindings for C & C++
Standalone chat system developed in php, mysql and javascript
Program for filesharing using Direct Connect and ADC protocols
A cross platform NINJAM client with linear chain-streaming mode
Low-latency, high quality voice chat for gamers
MSN compatible messenger application
Darkbot is an AI robot for IRC, especially useful for help channels.
[WARNING] Project has moved to http://github.com/Retroshare/Retroshare
PinoyChat: The International Chatroom App for Desktop
Free social network.
Secure Anonymous P2P Chat
A Work-In-Progress, Full-Featured, Open Source IRC Client
A web-browser based viewer for opensim/OpenSimulator
IRC client