ircII EPIC4 for OpenVMS - A port of the ircII EPIC4 Unix IRC client to the OpenVMS operating system.
ircII project - The original IRC client. Contains downloads, information, and mailing lists.
IRCmmm - IRC Client written in C# .NET. Similar look to MSN messenger.
IRCXpro - IRC client that works exactly like an instant messenger.
Irssi - Powerful text-based IRC client for UNIX with perl scripting support.
Klient - Windows IRC client. Uses DLLs rather than scripting to increase speed and lower processor demand.
KVIrc - Open source, cross-platform IRC client. Contains screenshots, client news, help and support, features list and miscellaneous section.
leafChat - Advanced IRC client for Windows with many useful functions and features.
leetIRC - Open source client for DOS. It handles mIRC color codes and has a scrollable log, drop down menus, integrated server list for connecting quickly, and full DCC file download support.
Real 3D Chat - Allows you to chat in real 3D in front of functional, scrollable Webpages with avatars who talk via bubbles.
savIRC - An IRC Client written in the tcl/tk programming language. Both Windows and Linux compatible. Contains screenshots, news, Forum, download area and documentation.
sirc - Open source, text-based IRC client for Unix with perl scripting features.
SpiffyStats - Windows-based IRC statistics generator. Generates detailed statistics based on the channel's log files.
TalkSoup - A GNUstep IRC client built on the extensibility of the Objective-C language. The entire client is implemented by plugins, so one can pick and choose what they want to use.
TurboIRC - Windows IRC client with enhanced features and scripting capabilities.