KVIrc is a graphical IRC client for Linux, Unix, Mac OS and Windows. Developed by HelLViS69 - code - hellvis69 @ netsons.org
License: Open Source
X-Chat 2 is a lightweight and fast IRC client with a customizable interface, making it suitable for users who prioritize performance and simplicity. In contrast, KVIrc offers a more modern graphical interface and advanced scripting capabilities, appealing to users who seek extensive customization and additional features.