A New Kind of Instant Messaging
A universal instant messaging (IM) program
You can message and share files inside your intranet without a server.
Development toolkit for Web Services and XML data bindings for C & C++
Anope hybrid services for use on the Karma-Irc network.
Standalone chat system developed in php, mysql and javascript
Erwin is an IRC-bot in Perl, using POE.
A modern, AI-Smart, WASTE p2p for ipv4 and invisible address spaces
Low-latency, high quality voice chat for gamers
Simple open source php based HTML5 rich web chat system
Darkbot is an AI robot for IRC, especially useful for help channels.
PinoyChat: The International Chatroom App for Desktop
CRG is now on GITHUB and Facebook
XMPP PHP BOT (XPbot) - simple, extensible jabber bot
free chat system
A Mod of DC++ Client Based on FreeDC++.