Dendron vs Zim
A side-by-side comparison of two self-hosted wikis & documentation options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | Dendron | Zim |
|---|---|---|
| Deploy effort | Read-the-docs project | Read-the-docs project |
| Health score | 55 · Fair | 83 · Excellent |
| Category | Wikis & Documentation | Wikis & Documentation |
| License | GPL-3.0 | GPL-2.0 |
| Language | TypeScript | Python |
| Setup difficulty | Medium | Easy |
| Min. RAM | 512 MB | 128 MB |
| Deployment | source, binary | binary, source |
| GitHub stars | ★ 7,470 | ★ 2,202 |
| First released | 2020 | 2008 |
| Replaces | Notion, Confluence | OneNote, Notion |
What are Dendron and Zim?
Dendron
Dendron is an open-source, local-first note-taking tool that works as a hierarchical personal knowledge wiki on top of VS Code. It uses a structured naming scheme to organize thousands of Markdown notes and can publish them as a static site.
- Hierarchical note schema
- Local Markdown storage
- Static site publishing
- VS Code integration
Zim
Zim is an open-source desktop application that works as a graphical text editor for maintaining a collection of wiki pages. Each page is a plain text file, making it a portable personal knowledge base.
- Desktop wiki application
- Plain text page files
- Plugin system
- Works fully offline
Dendron vs Zim: key differences
Dendron is written in TypeScript, while Zim is built with Python. Licensing differs — GPL-3.0 for Dendron versus GPL-2.0 for Zim. Zim is the lighter option, starting around 128 MB of RAM against 512 MB for Dendron. Zim is the more established project (first released 2008), while Dendron arrived in 2020. Dendron has the considerably larger community, at 7,470 GitHub stars versus 2,202.
Why pick each one
Choose Dendron if…
- Released under the GPL-3.0 license
- Mature project with 7.5k GitHub stars
- Written in TypeScript
- Lightweight — runs in 512 MB RAM
Watch out for
- Tied to VS Code
- Learning curve for hierarchy
Choose Zim if…
- Truly portable notes
- No server needed
Watch out for
- Desktop only
- No built-in multi-user mode
Frequently asked questions
Is Dendron or Zim better?
Neither is universally better. Dendron has the larger community, while Zim is simpler to set up (easy difficulty). Choose based on the comparison table above and your own setup.
Are Dendron and Zim free and open-source?
Yes. Dendron is licensed under GPL-3.0 and Zim under GPL-2.0. Both can be self-hosted at no software cost.
Can I run Dendron and Zim with Docker?
Dendron: check the project docs for container support. Zim: check the project docs for container support.
Which is lighter on resources, Dendron or Zim?
Zim has the smaller minimum footprint at 128 MB of RAM, compared to about 512 MB for Dendron. Real-world usage depends on library size, user count, and enabled features.