UnrealIRCd - UnrealIRCd is an Open Source IRC Server, serving thousands of networks since 1999.
ZNC - znc is an IRC proxy. It runs as a daemon and connects to IRC server, then allows you to connect...
ngIRCd - ngIRCd is a free, portable and lightweight Internet Relay Chat server for small or private...
pylink - PyLink is an IRC services package written from scratch in Python, supporting numerous IRC daemons...
irssi - Irssi is a terminal based IRC client for UNIX systems.
HexChat - HexChat is a fork of XChat with bug fixes and new features.