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Textual vs Irssi: catalog facts
Textual	Irssi
Paid Sold directly by the developer; no longer available in the Mac App Store.	Free Free and open source.
macOS	macOS, Linux, Command line
Native macOS interface with dark and light modes IRCv3, IPv6 and client certificate support	Runs in any terminal, including over SSH Scriptable and highly configurable
macOS only, requiring Monterey or later Paid, and no longer in the Mac App Store	Keyboard and command driven, with a learning curve IRC only, no other chat protocols
Downloadable app	Downloadable app
Closed 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 September 24, 2026	Official website Full listing and sources Checked September 24, 2026

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