CrazyIRCd is an ircd aimed to use MySQL and run on most all platforms.
Crikey! is a Cocoa IRC Client for Mac OS X
CsIrc is a opensource irc client developped in c#
Csb - A modular IRC bot in C#
A custom irc server based on Undernet IRCu. SubLinux Coder Committee
CuteIRC is a multi-server IRC client which supports also CTCP and DCC. It's multi-platform oriented (Linux, OS X, Windows) and full-featured but easy to use.
Cyrix is a feature rich, text-based chat daemon that is based on IRC but with many original enhancements and functions aimed at enhancing the chat experience.
This is an Eggdrop IRC script written in TcL for general public use. You can use it to give users limited channel control without giving them full access or access to Telnet.
DAVIS is an easy and useful language for IRC bots. This project contains our own bots, some bots for demonstration, a parser that creates Java, C, Perl and IRC-Script code out of a DAVIS file, and an interpreter for DAVIS files.
DCCgetter is a script intended for use with the psyBNC scripting mechanism, to provide a different way to manage and automatically accept certain of DCC send request from other IRC clients. It replaces the buggy DCC interface offered by psyBNC.
This program gives you a new way of capturing and collecting music from radio stations over the Internet. You can listen and record your favorites radios at the same time also this way like to realize audio diffusion using outcast stream protocol.
DDBot is a irc bot written in perl language, that allows to play Dungeons And Dragons on a IRC server.
An IRC-Bot made for Alliances at the browsergame Die-Ewigen
The DI tracker bot provides stream, event, and forums information for Digitally Imported (http://di.fm/) to IRC users.
DNIBot is an IRC bot, written in .NET, with an excellent plugin model for great extensibility, and almost complete remote managability (via IRC of course).
DOSIRCd is a complete Internet Relay Chat server, designed to run on a 16-bit DOS-based system. You can now dust off that old 8088 or 286 to turn it into a dedicated IRC server! This project is written in 100% QuickBASIC 7.1 PDS. Incl. built-in NickServ.
A whole set of IRC services meant to be an alternative to Anope, Epona or many others using entirely PHP. While still in early development, possibilities are endless.
DareNET Development projects
Servidor de IRC basado en el servidor de Undernet con encriptacion de IPs, IPv6 y otras caracterísicas como una base de datos distribuida (BDD) para la gestión integral de un portal de chat, así como otros proyectos y programas relacionados.
DarkFire IRCd is a modern, efficient, and reliable IRC server for use on medium sized networks. Features a faster protocol, new user and channel modes, powerful operator commands, and a revolutionary authentication method.
The IRC's Talking Robot
[ Please read https://sourceforge.net/p/darkbot/news/2014/01/darkbots-revitalization/ ] Darkbot is a portable IRC chat robot written in the C language that can be taught responses to user inquiries, and even have conversations with them. Darkbot was originally created by Jason Hamilton as an aid for help channels on Intenet Relay Chat.
DarkerIRC is a Java applet which provides IRC client functionality. It is highly configurable and still easy to install and maintain.
DarwinIRCd is an advanced Internet Relay Chat (IRC) Daemon based on UnrealIRCd with added features and enhancements.
DawgPaw IRCd development - Based on the Nefarious IRC Daemon
DccAssist is a clever plugin for the GNU/Linux X-Chat IRC client. The main goal is to develop a simple and robust tool to find, organize, and control xdcc file transfers; an ability the current and otherwise superb X-Chat misses sorely.