Compare software

Note Mark vs flatnotes: catalog facts
Note Markflatnotes
Free

Free and open source; the developer accepts donations.

Free

Free to self-host from the public GitHub repository.

Web, Self-hosted Web, Self-hosted
  • Minimal and fast web interface
  • Self-hosted, so notes stay on your server
  • No database; notes are plain Markdown files
  • Flat folder storage is easy to back up or sync
  • You need to run and maintain your own server
  • Smaller feature set than larger note platforms
  • Requires running your own server
  • Flat folder structure offers little hierarchy for large collections
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

Checked October 2, 2026

Checked September 24, 2026

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