A universal instant messaging (IM) program
Development toolkit for Web Services and XML data bindings for C & C++
Smoke: Android Crypto Chat Messenger
Cerberus Content Management System
IXSF Messenger is a java-based messenger
Open-source social network CMS and mobile apps.
Create chat bots for Facebook Messenger, Slack, Amazon Alexa, etc.
This Program Contains Many Useful Network Tools
MSN compatible messenger application
Instant Messenger Application
A small, reliable, local network messenger that doesn't need internet
An intranet chat application that does not require a server.
Chat Messenger written in Java
A P2P Messenger which uses JXTA. It provides secure RSA/AES end-to-end
A JAVA based Multi tab Web Browser having emphasis on Features.
K-Drive Instant Messenger
ActviveCollab Desktop Messenger