Flatnotes vs Outline

A side-by-side comparison of two self-hosted notes & knowledge base options — licensing, setup difficulty, resource needs, and what each one replaces.

Not the right match-up?
FeatureFlatnotesOutline
CategoryNotes & Knowledge BaseNotes & Knowledge Base
LicenseMITBSL-1.1
LanguageVueTypeScript
Setup difficultyEasyMedium
Min. RAM128 MB1,024 MB
Deploymentdocker, sourcedocker
GitHub stars★ 3,172★ 40,034
First released20212017
ReplacesEvernote, SimplenoteNotion, Confluence

Why pick each one

Choose Flatnotes if…

  • Trivial to back up
  • Very lightweight
Flatnotes details

Choose Outline if…

  • Polished team wiki
  • Great search
  • Strong integrations
Outline details

Frequently asked questions

Is Flatnotes or Outline better?

Neither is universally better. Outline has the larger community, while Flatnotes is simpler to set up (easy difficulty). Choose based on the comparison table above and your own setup.

Are Flatnotes and Outline free and open-source?

Yes. Flatnotes is licensed under MIT and Outline under BSL-1.1. Both can be self-hosted at no software cost.

Can I run Flatnotes and Outline with Docker?

Flatnotes: yes. Outline: yes.

Related comparisons