Home to the Signal Protocol and other cryptographic primitives
Used to integrate Android apps with Facebook Platform
Smoke: Android Crypto Chat Messenger
IXSF Messenger is a java-based messenger
GTK+ port of EZ Intranet Messenger
Chat Messenger written in Java
a java based LAN messenger
Underground IM is a free Java Instant Messaging solution.
A Java RMI base messenger which works on LAN
A P2P Messenger which uses JXTA. It provides secure RSA/AES end-to-end
Facebook Chat Desktop Messenger