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Irssi vs WeeChat: catalog facts
Irssi	WeeChat
Free Free and open source.	Free Free software; the project accepts donations.
macOS, Linux, Command line	Linux, Command line
Runs in any terminal, including over SSH Scriptable and highly configurable	Full-featured IRC support including SASL and DCC Scripting in eight languages with a script manager
Keyboard and command driven, with a learning curve IRC only, no other chat protocols	Terminal only, with a learning curve for new users IRC is the main built-in protocol
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0	License: GPL-3.0
No account needed	No account 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 September 23, 2026

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