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yarr vs RSSMonster: catalog facts
yarr	RSSMonster
Free The open-source software is available without a license fee. Hosting, hardware and…	Free Free to self-host with published source code.
Windows, macOS, Linux	Web, Self-hosted
Runs as a single executable with a browser interface.	Familiar three-pane reading layout Smart folders and search
You manage the instance and its stored feed data.	Requires running your own server and database Smaller community than older self-hosted readers
Downloadable app, Self-hosted	Self-hosted
Open source	Open source
License: MIT	License not stated
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 September 22, 2026	Official website Full listing and sources Checked October 1, 2026

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