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flatnotes vs Nextcloud Notes: catalog facts
flatnotes	Nextcloud Notes
Free Free to self-host from the public GitHub repository.	Free Free and open source.
Web, Self-hosted	Web, Self-hosted
No database; notes are plain Markdown files Flat folder storage is easy to back up or sync	Notes stored as plain files on your own server Markdown editing in the Nextcloud web interface
Requires running your own server Flat folder structure offers little hierarchy for large collections	Requires a Nextcloud server Deliberately simple compared with full note apps
Self-hosted	Self-hosted
Open source	Open source
License not stated	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 24, 2026	Official website Full listing and sources Checked September 23, 2026

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