org-roam vs Zettlr
A side-by-side comparison of two self-hosted notes & knowledge base options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | org-roam | Zettlr |
|---|---|---|
| Deploy effort | Read-the-docs project | Read-the-docs project |
| Health score | 68 · Good | 94 · Excellent |
| Category | Notes & Knowledge Base | Notes & Knowledge Base |
| License | GPL-3.0 | GPL-3.0 |
| Language | Emacs Lisp | TypeScript |
| Setup difficulty | Medium | Easy |
| Min. RAM | 128 MB | 256 MB |
| Deployment | source | bare-metal, binary |
| GitHub stars | ★ 6,030 | ★ 13,577 |
| First released | 2020 | 2017 |
| Replaces | Roam Research, Obsidian | Notion, Obsidian |
What are org-roam and Zettlr?
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
Zettlr
Zettlr is a desktop Markdown editor designed for academic writing and Zettelkasten note management, with citation support and internal linking. While desktop-first, it works on plain Markdown folders that can sync between machines.
- Zettelkasten linking
- Citation manager support
- Multi-format export
- Folder-based projects
org-roam vs Zettlr: key differences
Org-roam is written in Emacs Lisp, while Zettlr is built with TypeScript. Org-roam is the lighter option, starting around 128 MB of RAM against 256 MB for Zettlr. Zettlr is the more established project (first released 2017), while org-roam arrived in 2020. Zettlr has the considerably larger community, at 13,577 GitHub stars versus 6,030.
Why pick each one
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
Choose Zettlr if…
- Strong academic features
- Plain Markdown files
Watch out for
- Desktop only
- No native sync server
Frequently asked questions
Is org-roam or Zettlr better?
Zettlr is the stronger all-round pick: it has both the larger community and the simpler easy setup. Consider org-roam if its specific feature set fits your needs better.
Are org-roam and Zettlr free and open-source?
Yes. org-roam is licensed under GPL-3.0 and Zettlr under GPL-3.0. Both can be self-hosted at no software cost.
Can I run org-roam and Zettlr with Docker?
org-roam: check the project docs for container support. Zettlr: check the project docs for container support.
Which is lighter on resources, org-roam or Zettlr?
org-roam has the smaller minimum footprint at 128 MB of RAM, compared to about 256 MB for Zettlr. Real-world usage depends on library size, user count, and enabled features.