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flatnotesLibreNotes
Free

Free to self-host from the public GitHub repository.

 Free

Free and open source under the AGPL-3.0.

Web, Self-hosted Android, Self-hosted
  • No database; notes are plain Markdown files
  • Flat folder storage is easy to back up or sync
  • End-to-end encryption, server sees only ciphertext
  • Markdown notes with live preview
  • Requires running your own server
  • Flat folder structure offers little hierarchy for large collections
  • Requires running your own server
  • Built for a single owner, not shared notebooks
Self-hosted Downloadable app, Self-hosted
Open source Open source
License not stated License: AGPL-3.0
Not stated if an account is needed No account needed
Not stated if it works offline Not stated if it works offline

Checked September 24, 2026

Checked October 2, 2026

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