Pidgin
Open Source
Pidgin is a free and open-source chat client which supports AIM, Google Talk, ICQ, XMPP protocols.
mIRC
Commercial
mIRC is an Internet Relay Chat (IRC) client for Windows.
KVIrc
Open Source
KVIrc is a graphical IRC client for Linux, Unix, Mac OS and Windows.
AdiIRC
Free
AdiIRC is a free Internet Relay Chat (IRC) client.
Chatzilla
Open Source
ChatZilla is an IRC client for Mozilla-based browsers such as Firefox.
HexChat
Open Source
HexChat is an open-source, cross-platform IRC client.
Quassel IRC
Open Source
Quassel IRC, or Quassel, is a graphical, distributed, cross-platform IRC client.
Smuxi
Open Source
Smuxi is a cross-platform IRC client for the GNOME desktop inspired by Irssi.
X-Chat 2 for Windows
Free
X-Chat 2 for Windows is an unofficial open-source GPL X-Chat (UNIX IRC client) build for Windows.
LimeChat
Open Source
LimeChat is an IRC client for Mac OS X.
Compare XChat for Linux with alternatives
Compare Pidgin and XChat for Linux and decide which is most suitable for you.
Compare HexChat and XChat for Linux and decide which is most suitable for you.
Compare mIRC and XChat for Linux and decide which is most suitable for you.
Compare Quassel IRC and XChat for Linux and decide which is most suitable for you.
Compare KVIrc and XChat for Linux and decide which is most suitable for you.
Compare Smuxi and XChat for Linux and decide which is most suitable for you.
Compare AdiIRC and XChat for Linux and decide which is most suitable for you.
Compare X-Chat 2 for Windows and XChat for Linux and decide which is most suitable for you.
Compare Chatzilla and XChat for Linux and decide which is most suitable for you.
Compare LimeChat and XChat for Linux and decide which is most suitable for you.