HexChat - HexChat is a fork of XChat with bug fixes and new features.
Chatroll - Chatroll is the leading provider of interactive tools for social publishers.
mIRC - mIRC: Internet Relay Chat client
tawk.to - tawk.to is a free live chat app that lets you monitor and chat with visitors on your website or from a free customizable page
irssi - Irssi is a terminal based IRC client for UNIX systems.
LiveAgent - LiveAgent is a fully-featured web-based live chat and help desk software. It harnesses the power of a universal inbox, real-time live chat, built-in call center, and a robust customer service portal. Start your free 1 month trial today!