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Omnivore vs readflow: catalog facts
Omnivore	readflow
Free Free and open source under the AGPL-3.0 licence.	Free Free with published source code.
Web, Self-hosted, Browser extension	Web, Self-hosted
Highlights, notes and labels on saved articles Newsletters by email, PDFs and RSS feeds in one place	Combines feed reading and read-it-later Bookmarklet for saving pages
Hosted service closed, so you must run your own server Maintained by the community after the company stepped back	Needs a PostgreSQL database Smaller user base than mainstream readers
Self-hosted	Self-hosted
Open source	Open source
License: AGPL-3.0	License not stated
Not stated if an account is needed	Not stated if an account is needed
Works offline	Not stated if it works offline
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.