XChat is an IRC chat program for both Linux and Windows. It allows you to join multiple IRC channels (chat rooms) at the same time, talk publicly, private one-on-one conversations etc. Developed by Peter Zelezny
License: Open Source
XChat is an open-source IRC client that is more focused on Linux users, offering customization and flexibility. In contrast, mIRC is a commercial client known for its powerful scripting features and extensive user base, primarily on Windows.