A universal instant messaging (IM) program
Development toolkit for Web Services and XML data bindings for C & C++
VICIdial Contact Center Suite
PHP driven chat forum
Psi IM — Qt-based XMPP client
FasFollow is a social media website, and use to connect people.
Low-latency, high quality voice chat for gamers
A simple & beautiful desktop client for Facebook Messenger
MSN compatible messenger application
PinoyChat: The International Chatroom App for Desktop
A Work-In-Progress, Full-Featured, Open Source IRC Client
'Leet Network is a free chatting client Based on java technologies.
Live Chat Module to improve service and chat directly with visitors.
It adds a live chat room to JomSocial, single sign-on & social connect
The IRC's Talking Robot
A multi-protocol instant messaging app for Mac OS X
The original Xivio.com World Server Core