AmuseWiki - Amusewiki is based on the Emacs Muse markup, remaining mostly compatible with the original implementation. It can work as a read-only site, as a moderated wiki, or as a fully open wiki or even as a private site. (Demo, Source Code) GPL-1.0Perl/Docker
BookStack - Organize and store information. Stores documentation in a book like fashion. (Demo, Source Code) MITPHP/Docker
django-wiki - Wiki system with complex functionality for simple integration and a superb interface. Store your knowledge with style: Use django models. (Demo) GPL-3.0Python
docmost - Collaborative wiki and documentation software (alternative to Confluence, Notion). (Source Code) AGPL-3.0Docker/Nodejs
Documize - Modern Docs + Wiki software with built-in workflow, single binary executable, just bring MySQL/Percona. (Source Code) AGPL-3.0Go
Dokuwiki - Easy to use, lightweight, standards-compliant wiki engine with a simple syntax allowing reading the data outside the wiki. All data is stored in plain text files, therefore no database is required. (Source Code) GPL-2.0PHP
Feather Wiki - A lightning fast and infinitely extensible tool for creating personal non-linear notebooks, databases, and wikis that is entirely self-contained, runs in your browser, and is only 58 kilobytes in size. (Demo, Source Code, Clients) AGPL-3.0Javascript
Gitit - Wiki program that stores pages and uploaded files in a git repository, which can then be modified using the VCS command line tools or the wiki's web interface. GPL-2.0Haskell
Gollum - Simple, Git-powered wiki with a sweet API and local frontend. MITRuby
Mediawiki - Wiki software package that powers Wikipedia and all other Wikimedia projects, serving hundreds of millions of users each month. (Demo, Source Code) GPL-2.0PHP
Mycorrhiza Wiki - Filesystem and git-based wiki engine written in Go using Mycomarkup as its primary markup language. (Source Code) AGPL-3.0Go
Otter Wiki - Simple, easy to use wiki software using markdown. (Source Code) MITDocker
Pepperminty Wiki - Complete markdown-powered wiki contained in a single PHP file. (Demo) MPL-2.0PHP
PmWiki - Wiki-based system for collaborative creation and maintenance of websites. GPL-3.0PHP
Raneto - Raneto is an open source Knowledgebase platform that uses static Markdown files to power your Knowledgebase. (Source Code) MITNodejs
TiddlyWiki - Reusable non-linear personal web notebook. (Source Code) BSD-3-ClauseNodejs
Tiki - Wiki CMS Groupware with the most built-in features. (Demo, Source Code) LGPL-2.1PHP
W - Lightweight, mutli-user, flat-file-database Wiki engine. Create pages quickly and edit them in your Web browser using Mardown/HTML/CSS/JS. The main difference with other wiki is that you are encouraged to customize each page style individually. (Source Code) AGPL-3.0PHP
WackoWiki - WackoWiki is a light and easy to install multilingual Wiki-engine. (Source Code) BSD-3-ClausePHP
Wiki.js - Modern, lightweight and powerful wiki app using Git and Markdown. (Demo, Source Code) AGPL-3.0Nodejs/Docker/K8S
WikiDocs - A databaseless markdown flat-file wiki engine. (Source Code) MITPHP/Docker
Wikmd - Modern and simple file based wiki that uses Markdown and Git. MITPython/Docker
XWiki - Second generation wiki that allows the user to extend its functionalities with a powerful extension-based architecture. (Demo, Source Code) LGPL-2.1Java/Docker/deb
Zim - Graphical text editor used to maintain a collection of wiki pages. Each page can contain links to other pages, simple formatting and images. (Source Code) GPL-2.0Python/deb