Confluence, BookStack, GitBook, Read The Docs, MkDocs, DokuWiki, TiddlyWiki, Nuclino, MediaWiki, Sphinx, ReadMe, WackoWiki, Walling, You Need A Wiki, Docsie, wreeto, ATWiki, Banana Dance Wiki/CMS, XWiki, Tettra, MoinMoin, Dokit, Pmwiki, Ema Personal Wiki, Foswiki, Notaku, Raneto, Instiki, Widget-Board, IT Glue, DocsApp, UserPress, Gollum wiki, Notea, Markdoc, Docuie, Zoho Wiki, MarkWiki, ikiwiki, LionWiki, SimpleDocServer, Referata, Wikidocs, Waybook, Lessons Learned Server, Pepperminty Wiki, Bookplay, NoteLynX Outliner Mindmap Wiki, DeveloperHub are some alternatives to Wiki.js.