Mattermost Desktop application for Windows, Mac and Linux
A patched version of discord, with bot login support
An alternative Discord client with voice support made with C++ and GTK
The first messaging platform operating without user identifiers
A New Kind of Instant Messaging
Mumble is an open-source, low-latency, high quality voice chat
Java wrapper for the popular chat & VOIP service
The extensible chat client
Discord Messaging Panel that allows you to message inside of a bot
VICIdial Contact Center Suite
Youtube deletes your comments?
A free client for sb0t an other servers in the Ares Network
Open-source XMPP client for Android
Open-source social network CMS and mobile apps.
JAVA websocket implementation for a bomberman-like game
A web-browser based viewer for opensim/OpenSimulator
The IRC's Talking Robot