Flatnotes vs Obsidian
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?
Flatnotes
Self-hosted, database-less note-taking web app
VS
Obsidian
Local-first knowledge base on a folder of Markdown files
| Feature | Flatnotes | Obsidian |
|---|---|---|
| Category | Notes & Knowledge Base | Notes & Knowledge Base |
| License | MIT | Proprietary |
| Language | Vue | JavaScript |
| Setup difficulty | Easy | Easy |
| Min. RAM | 128 MB | 256 MB |
| Deployment | docker, source | binary |
| GitHub stars | ★ 3,172 | ★ 20,632 |
| First released | 2021 | 2020 |
| Replaces | Evernote, Simplenote | Evernote, Notion, OneNote |
Why pick each one
Frequently asked questions
Is Flatnotes or Obsidian better?
Neither is universally better. Obsidian has the larger community; both share a easy setup difficulty, so the decision comes down to features and licensing.
Are Flatnotes and Obsidian free and open-source?
Yes. Flatnotes is licensed under MIT and Obsidian under Proprietary. Both can be self-hosted at no software cost.
Can I run Flatnotes and Obsidian with Docker?
Flatnotes: yes. Obsidian: check the project docs for container support.