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senpai vs Irssi: catalog facts
senpai	Irssi
Free Free, with source code on sourcehut.	Free Free and open source.
Windows, Linux, Command line	macOS, Linux, Command line
History and search fetched from the bouncer File upload with drag and drop	Runs in any terminal, including over SSH Scriptable and highly configurable
Works best with a bouncer supporting modern IRCv3 extensions Terminal only	Keyboard and command driven, with a learning curve IRC only, no other chat protocols
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: GPL-2.0
No account needed	No account needed
Needs internet	Needs internet
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 24, 2026

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