In simple English
Otter Wiki is a small website where you can write and share notes. Every time you change a page, the website saves a new version in the background. It uses plain text files formatted in Markdown, which is a simple way to add bold text, lists and links with punctuation marks. You can run it on your own server for free. It is good for team handbooks or personal notes.
What it is
Otter Wiki is a lightweight wiki engine written in Python and Flask. It stores all page content inside a Git repository (a folder that tracks the history of changes over time).
What it is good for
Solo builders who want a self-hosted notebook or documentation site that keeps a complete history of every change without needing a heavy database.
- Saves every edit in a Git history so you can undo mistakes.
- Supports diagrams, tables, and dark mode out of the box.
- Runs easily inside a Docker container.
- Requires a small server or local machine to run.
- Needs basic knowledge of Docker or Python to install.
- Lacks advanced user permission controls beyond simple admin status.
Notion or Confluence for personal notes and documentation
Docker for running the service on your server
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docker-compose up -d