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Wiki.js vs An Otter Wiki: catalog facts
Wiki.js	An Otter Wiki
Free The open-source software is available without a license fee. Hosting, hardware and…	Free Free and open source under the MIT licence.
Web, Self-hosted	Self-hosted
Optional Git storage keeps every page as a plain file in a repository Many authentication providers and fine-grained page permissions	Git backend with full page history Extended Markdown with tables, formulas and diagrams
Version 3 has been in development for years while 2.x remains the stable line	Mermaid diagrams and Git server are experimental Deliberately minimal feature set
Self-hosted, Web application	Self-hosted
Open source	Open source
License: AGPL-3.0	License: MIT
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.