A multi-platform CLI client licensed under the GPLv3.

A GTK+ X-windows client with Perl and Python scripting support.

Fast, feature packed and customizable, handles multiple-servers. Open Source, written in C++/WTL.

A port of the ircII EPIC4 Unix IRC client to the OpenVMS operating system.

The original IRC client. Contains downloads, information, and mailing lists.

Advanced IRC client for Windows with many useful functions and features.

A free, cross-platform, distributed IRC client based on the Qt4 framework. It allows one or multiple clients to attach to and detach from a central core that stays permanently online.

Allows you to chat in real 3D in front of functional, scrollable Webpages with avatars who talk via bubbles.

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.

Windows IRC client with enhanced features and scripting capabilities.