A universal instant messaging (IM) program
You can message and share files inside your intranet without a server.
UFONet - Denial of Service Toolkit
Chat Messenger. E-Mail-Client. Websearch. Filetransfer.
Anope hybrid services for use on the Karma-Irc network.
The Free & Popular FLARUM Web Software in a Complete Virtual Machine
Standalone chat system developed in php, mysql and javascript
Internet Discussion Boards is a message board system by Game Maker 2k.
A modern, AI-Smart, WASTE p2p for ipv4 and invisible address spaces
Low-latency, high quality voice chat for gamers
Open-source social network CMS and mobile apps.
WeLive5 is an online customer service system, online support
NMDC Hub Server
Aire de jeu de Belote en ligne
Darkbot is an AI robot for IRC, especially useful for help channels.
Free social network.
Secure Anonymous P2P Chat
'Leet Network is a free chatting client Based on java technologies.