Otter Wiki vs TiddlyWiki
A side-by-side comparison of two self-hosted wikis & documentation options — licensing, setup difficulty, resource needs, and what each one replaces.
TiddlyWiki
A non-linear personal web notebook in a single file
| Feature | Otter Wiki | TiddlyWiki |
|---|---|---|
| Deploy effort | Under-an-hour setup | Read-the-docs project |
| Health score | 84 · Excellent | 92 · Excellent |
| Category | Wikis & Documentation | Wikis & Documentation |
| License | MIT | BSD-3-Clause |
| Language | Python | JavaScript |
| Setup difficulty | Easy | Easy |
| Min. RAM | 128 MB | 64 MB |
| Deployment | docker, bare-metal, source | binary, bare-metal, source |
| GitHub stars | ★ 1,544 | ★ 8,662 |
| First released | 2021 | 2004 |
| Replaces | Confluence, Notion | Notion, OneNote |
What are Otter Wiki and TiddlyWiki?
Otter Wiki
Otter Wiki is a minimalistic open-source wiki that stores its pages as Markdown in a Git repository. It offers a simple web interface with editing, history, and search for small teams.
- Git-backed Markdown pages
- Built-in history and diffs
- Full-text search
- Minimalist interface
TiddlyWiki
TiddlyWiki is a unique open-source wiki that can run as a single self-contained HTML file. It is a non-linear notebook for capturing and organizing information, also runnable as a Node.js server.
- Runs as a single HTML file
- Non-linear note structure
- Highly customizable
- Optional Node.js server mode
Otter Wiki vs TiddlyWiki: key differences
Otter Wiki is written in Python, while TiddlyWiki is built with JavaScript. Licensing differs — MIT for Otter Wiki versus BSD-3-Clause for TiddlyWiki. TiddlyWiki is the lighter option, starting around 64 MB of RAM against 128 MB for Otter Wiki. TiddlyWiki is the more established project (first released 2004), while Otter Wiki arrived in 2021. TiddlyWiki has the considerably larger community, at 8,662 GitHub stars versus 1,544. Otter Wiki lists first-class Docker deployment; TiddlyWiki does not.
Why pick each one
Choose Otter Wiki if…
- Easy to host and back up
- Clean, simple UI
Watch out for
- Basic feature set
- Smaller community
Choose TiddlyWiki if…
- Extremely portable
- Works fully offline
Watch out for
- Idiosyncratic concepts
- Multi-user needs the server mode
Frequently asked questions
Is Otter Wiki or TiddlyWiki better?
Neither is universally better. TiddlyWiki has the larger community; both share a easy setup difficulty, so the decision comes down to features and licensing.
Are Otter Wiki and TiddlyWiki free and open-source?
Yes. Otter Wiki is licensed under MIT and TiddlyWiki under BSD-3-Clause. Both can be self-hosted at no software cost.
Can I run Otter Wiki and TiddlyWiki with Docker?
Otter Wiki: yes. TiddlyWiki: check the project docs for container support.
Which is lighter on resources, Otter Wiki or TiddlyWiki?
TiddlyWiki has the smaller minimum footprint at 64 MB of RAM, compared to about 128 MB for Otter Wiki. Real-world usage depends on library size, user count, and enabled features.