When comparing Xwiki vs Wiki.js, the Slant community recommends Xwiki for most people. In the question“What are the best open source wikis with native markdown support?” Xwiki is ranked 1st while Wiki.js is ranked 3rd. The most important reason people chose Xwiki is:
More than [600 extensions are available](https://extensions.xwiki.org/xwiki/bin/view/Main/).
Ranked in these QuestionsQuestion Ranking
More than 600 extensions are available.
You can try out XWiki in the Online Playground.
Cloud and Hosted offers are available.
Pro Search engine
Built in search engine.
Pro Built in access control
Restrict access to your Wiki to certain users or even just parts of your content.
Pro Modern UI
Modern and elegant UI.