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Halloy vs Polari: catalog facts
Halloy	Polari
Free Free and open source under the GPL-3.0 licence.	Free Free and open source under the GPL-2.0-or-later licence.
Windows, macOS, Linux	Linux
Broad IRCv3 support including chathistory and soju bouncer features Native cross-platform app from one codebase	Integrates cleanly with the GNOME desktop Simple interface focused on conversations
Configuration is done by editing a text file IRC only; no other chat protocols	Linux only Fewer power-user features than clients such as HexChat or WeeChat
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: GPL-2.0-or-later
No account needed	No account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 1, 2026

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