irssi
Open Source
Irssi is an IRC client program for Linux, FreeBSD, Mac OS X and Microsoft Windows.
Smuxi
Open Source
Smuxi is a cross-platform IRC client for the GNOME desktop inspired by Irssi.
AdiIRC
Free
AdiIRC is a free Internet Relay Chat (IRC) client.
Textual
Commercial
Textual is an IRC client created specifically for macOS.
KVIrc
Open Source
KVIrc is a graphical IRC client for Linux, Unix, Mac OS and Windows.
WeeChat
Open Source
WeeChat is a free and open-source Internet Relay Chat client, which is designed to be light and fast.
Chatzilla
Open Source
ChatZilla is an IRC client for Mozilla-based browsers such as Firefox.
Compare X-Chat 2 for Windows with alternatives
Compare irssi and X-Chat 2 for Windows and decide which is most suitable for you.
Compare KVIrc and X-Chat 2 for Windows and decide which is most suitable for you.
Compare Smuxi and X-Chat 2 for Windows and decide which is most suitable for you.
Compare WeeChat and X-Chat 2 for Windows and decide which is most suitable for you.
Compare AdiIRC and X-Chat 2 for Windows and decide which is most suitable for you.
Compare Chatzilla and X-Chat 2 for Windows and decide which is most suitable for you.
Compare Textual and X-Chat 2 for Windows and decide which is most suitable for you.