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Synology Note Station Client vs flatnotes: catalog facts
Synology Note Station Client	flatnotes
Free Free with a Synology NAS that runs the Note Station package.	Free Free to self-host from the public GitHub repository.
macOS, Self-hosted	Web, Self-hosted
Notes stay on your own NAS Rich text, media embedding and attachments	No database; notes are plain Markdown files Flat folder storage is easy to back up or sync
Requires Synology NAS hardware Closed source and tied to the Synology ecosystem	Requires running your own server Flat folder structure offers little hierarchy for large collections
Downloadable app, Self-hosted	Self-hosted
Closed 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 October 2, 2026	Official website Full listing and sources Checked September 24, 2026

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