Irssi – text mode chatting client

Irssi is a terminal based IRC client for UNIX systems. It also supports SILC and ICB protocols via plugins.

Being a fullscreen, termcap based client, with many features, Irssi is easily extensible through scripts and modules.

Unlike some text mode IRC clients, Irssi is not based on the ircII code, and was written from scratch.

The software uses a text-mode user interface.

Features include:

  • Autologging – will log channels, queries and special windows.
  • Completely themeable. Every single message can be themed. True colours can be used in your themes.
  • Modular Formatting and themes.
  • Configurable keybindings – allows users to modify the default keybindings and create your own so you can customize your client.
  • Paste detection – tries to detect when you are pasting large amounts of text, by looking at the speed that characters are entered.
  • Perl scripting with a wide range of available extensions.
  • Irssi-proxy – plugin which allows to bind a port to each IRC server you are connected to.
  • Transparent upgrading.
  • Recode support.
  • Cross-platform support – runs under Linux, BSD, Solaris, Mac OS X, and Windows.

Support: Documentation, FAQ, GitHub Code Repository
Developer: Valentin Batz, Wouter Coekaerts, Jochen Eisinger, Geert Hauwaerts, Jilles Tjoelker, Alexander Færøy, Jase Thew, dequis, Ailin Nemui, Giuseppe and many contributors – Timo Sirainen (original code)
License: GNU General Public License v2.0


Irssi is written in C. Learn C with our recommended free books and free tutorials.

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