Irssi is a modular chat client that is most commonly known for its text mode user interface, but 80% of the code isn't text mode specific. Irssi comes with IRC support built in, and there are third party ICB, SILC, XMPP (Jabber), PSYC and Quassel protocol modules available.

git clone https://github.com/irssi/irssi
cd irssi
./autogen.sh
make && sudo make install

• Download release
• Verify signature

tar xJf irssi-*.tar.xz
cd irssi-*
./configure
make && sudo make install

• glib-2.28 or greater
• openssl
• perl-5.6 or greater (for perl support)
• terminfo or ncurses (for text frontend)

• Frequently Asked Questions
• Startup How-To
• Check the built-in /HELP, it has all the details on command syntax

Please report security issues to staff@irssi.org. Thanks!

Check the GitHub issues if it is already listed in there; if not, open an issue on GitHub or send a mail to staff@irssi.org.

Irssi is always looking for developers. Feel free to submit patches through GitHub pull requests.

You can also contact the Irssi developers in #irssi on freenode.