Compare software

Irssi vs ii: catalog facts
Irssi	ii
Free Free and open source.	Free Free software distributed under the MIT license.
macOS, Linux, Command line	Linux, Command line
Runs in any terminal, including over SSH Scriptable and highly configurable	IRC messages and commands are accessible as files Can be controlled from shell commands and scripts
Keyboard and command driven, with a learning curve IRC only, no other chat protocols	Uses a filesystem interface rather than a graphical chat client
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0	License: MIT
No account needed	Not stated if an account is needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked October 8, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.