ircII

ircII
Original authorMichael Sandrof
DevelopersMatthew R. Green, ircII project
Initial release1989 (1989)
Stable release
20260115  / 16 January 2026
Written inC
Operating systemUnix-like
Size577 kB
Available inEnglish
TypeIRC client
LicenceBSD-3-Clause
Websitewww.eterna23.net/ircii/

ircII (pronounced i-r-c-two or irk-two, and sometimes referred to as IRC client, second edition) is a free, open-source Unix IRC and ICB client written in C. Initially released in the late 1980s, it is the oldest IRC client still maintained.