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Alligator vs Liferea: catalog facts
Alligator	Liferea
Free Free and open source under the GPL-2.0-or-later.	Free Free and open source under the GPL.
Linux	Linux
Adaptive layout for desktop and phone screens Supports standard RSS and Atom feeds	Offline reading with locally cached articles Syncs with several self-hosted and hosted reader accounts
Fewer features than KDE's larger Akregator reader Linux only	Linux only Interface follows an older three-pane convention
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0-or-later	License: GPL-2.0
No account needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 22, 2026

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