HexChat

About

HexChat is an IRC client based on XChat, but unlike XChat it’s completely free for both Windows and Unix-like systems. Since XChat is open source, it’s perfectly legal. For more info, please read the Shareware background.

HexChat was originally called XChat-WDK which in turn was a successor of freakschat. For more info, please read the announcement.

Features

• Easy to use and customizable interface
• Cross-platform on Windows and Unix-like OSes
• Highly scriptable with Lua, Python, and Perl
• Translated in multiple languages
• Fully open source and actively developed
• Multi-network with auto-connect, join, and identify
• Spellcheck, Proxies, SASL, DCC support and more