NoteDiscovery vs org-roam
A side-by-side comparison of two self-hosted notes & knowledge base options — licensing, setup difficulty, resource needs, and what each one replaces.
NoteDiscovery
Self-hosted Markdown knowledge base with graph view
VS
org-roam
Plain-text personal knowledge management for Emacs
| Feature | NoteDiscovery | org-roam |
|---|---|---|
| Deploy effort | Under-an-hour setup | Read-the-docs project |
| Health score | 87 · Excellent | 68 · Good |
| Category | Notes & Knowledge Base | Notes & Knowledge Base |
| License | MIT | GPL-3.0 |
| Language | JavaScript | Emacs Lisp |
| Setup difficulty | Medium | Medium |
| Min. RAM | 256 MB | 128 MB |
| Deployment | docker, source | source |
| GitHub stars | ★ 2,812 | ★ 6,030 |
| First released | 2024 | 2020 |
| Replaces | Obsidian, Notion | Roam Research, Obsidian |
What are NoteDiscovery and org-roam?
NoteDiscovery
NoteDiscovery is a self-hosted Markdown knowledge base featuring wikilinks, a graph view, a drawing editor, and LaTeX and Mermaid rendering. It is designed for building and exploring a connected personal knowledge base.
- Wikilinks and graph view
- Drawing editor
- LaTeX and Mermaid support
- Self-hosted knowledge base
org-roam
Org-roam is a plain-text personal knowledge management system for Emacs that brings Zettelkasten-style note-taking on top of Org-mode files. It maintains a database of links between notes for backlinks and graph views.
- Zettelkasten workflow
- Backlinks panel
- Org-mode based
- Link graph
NoteDiscovery vs org-roam: key differences
NoteDiscovery is written in JavaScript, while org-roam is built with Emacs Lisp. Licensing differs — MIT for NoteDiscovery versus GPL-3.0 for org-roam. Org-roam is the lighter option, starting around 128 MB of RAM against 256 MB for NoteDiscovery. Org-roam is the more established project (first released 2020), while NoteDiscovery arrived in 2024. Org-roam has the considerably larger community, at 6,030 GitHub stars versus 2,812. NoteDiscovery lists first-class Docker deployment; org-roam does not.
Why pick each one
Choose NoteDiscovery if…
- Released under the MIT license
- First-class Docker support for quick deployment
- Active community (2.8k GitHub stars)
- Written in JavaScript
Choose org-roam if…
- Released under the GPL-3.0 license
- Mature project with 6k GitHub stars
- Written in Emacs Lisp
- Tiny footprint — runs in 128 MB RAM
Frequently asked questions
Is NoteDiscovery or org-roam better?
Neither is universally better. org-roam has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are NoteDiscovery and org-roam free and open-source?
Yes. NoteDiscovery is licensed under MIT and org-roam under GPL-3.0. Both can be self-hosted at no software cost.
Can I run NoteDiscovery and org-roam with Docker?
NoteDiscovery: yes. org-roam: check the project docs for container support.
Which is lighter on resources, NoteDiscovery or org-roam?
org-roam has the smaller minimum footprint at 128 MB of RAM, compared to about 256 MB for NoteDiscovery. Real-world usage depends on library size, user count, and enabled features.