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JARR vs selfoss: catalog facts
JARR	selfoss
Free Free and open source under the AGPL-3.0.	Free Free and open source under the GPL. Hosting is separate.
Web, Self-hosted	Web, Self-hosted
Three-column reading interface in the browser Folders for categories and a view of feeds with errors	Spout plugins pull in sources that are not plain RSS Small PHP and SQLite install that runs on shared hosting
Documentation on the homepage is an older introduction post Small project with a small community	Development is slow and version 2 has been in progress a long time Interface is basic compared with newer readers
Self-hosted	Self-hosted, Web application
Open source	Open source
License: AGPL-3.0	License: GPL-3.0
Not stated if an account is 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 2, 2026	Official website Full listing and sources Checked September 22, 2026

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