MediaWiki 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 | MediaWiki | Zim |
|---|---|---|
| Deploy effort | Under-an-hour setup | Read-the-docs project |
| Health score | 87 · Excellent | 83 · Excellent |
| Category | Wikis & Documentation | Wikis & Documentation |
| License | GPL-2.0 | GPL-2.0 |
| Language | PHP | Python |
| Setup difficulty | Medium | Easy |
| Min. RAM | 512 MB | 128 MB |
| Deployment | docker, bare-metal, source | binary, source |
| GitHub stars | ★ 5,174 | ★ 2,202 |
| First released | 2002 | 2008 |
| Replaces | Confluence, Notion | OneNote, Notion |
What are MediaWiki and Zim?
MediaWiki
MediaWiki is the free, open-source wiki software developed for and used by Wikipedia. It is built to handle large collaborative knowledge bases with powerful templating, extensions, and revision history.
- Powers Wikipedia at scale
- Powerful template system
- Vast extension library
- Full revision history
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
MediaWiki vs Zim: key differences
MediaWiki is written in PHP, while Zim is built with Python. Zim is the lighter option, starting around 128 MB of RAM against 512 MB for MediaWiki. MediaWiki is the more established project (first released 2002), while Zim arrived in 2008. MediaWiki has the considerably larger community, at 5,174 GitHub stars versus 2,202. MediaWiki lists first-class Docker deployment; Zim does not.
Why pick each one
Choose MediaWiki if…
- Battle-tested at massive scale
- Huge extension ecosystem
Watch out for
- Wikitext has a learning curve
- Setup can be involved
Choose Zim if…
- Truly portable notes
- No server needed
Watch out for
- Desktop only
- No built-in multi-user mode
Frequently asked questions
Is MediaWiki or Zim better?
Neither is universally better. MediaWiki 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 MediaWiki and Zim free and open-source?
Yes. MediaWiki is licensed under GPL-2.0 and Zim under GPL-2.0. Both can be self-hosted at no software cost.
Can I run MediaWiki and Zim with Docker?
MediaWiki: yes. Zim: check the project docs for container support.
Which is lighter on resources, MediaWiki or Zim?
Zim has the smaller minimum footprint at 128 MB of RAM, compared to about 512 MB for MediaWiki. Real-world usage depends on library size, user count, and enabled features.