wikis

Mediawiki - MediaWiki is a free and open-source wiki software package written in PHP. It serves as the platform for Wikipedia and the other Wikimedia projects, used by hundreds of millions of people each month. GPL-2.0 PHP

django-wiki - Wiki system with complex functionality for simple integration and a superb interface. Store your knowledge with style: Use django models. GPL-3.0 Python

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. GPL-2.0 PHP

Outline - An open, extensible, wiki for your team. BSD-3-Clause Nodejs/Docker

BookStack - BookStack is a simple, self-hosted, easy-to-use platform for organizing and storing information. It allows for documentation to be stored in a book like fashion. MIT PHP/Docker

HedgeDoc (formerly known as CodiMD) is an open-source, web-based, self-hosted, collaborative markdown editor.

TiddlyWiki - Reusable non-linear personal web notebook. BSD-3-Clause Nodejs

Wiki.js - Modern, lightweight and powerful wiki app using Git and Markdown. AGPL-3.0 Nodejs/Docker/K8S

XWiki - Second generation wiki that allows the user to extend its functionalities with a powerful extension-based architecture. LGPL-2.1 Java/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. GPL-2.0 Python/deb

Tiki - Wiki CMS Groupware with the most built-in features. LGPL-2.1 PHP

PmWiki - Wiki-based system for collaborative creation and maintenance of websites. GPL-3.0 PHP

Documize - Modern Docs + Wiki software with built-in workflow, single binary executable, just bring MySQL/Percona. AGPL-3.0 Go

Mycorrhiza Wiki - Filesystem and git-based wiki engine written in Go using Mycomarkup as its primary markup language. AGPL-3.0 Go

WackoWiki - WackoWiki is a light and easy to install multilingual Wiki-engine. BSD-3-Clause PHP

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. GPL-1.0 Perl/Docker

Raneto - Raneto is an open source Knowledgebase platform that uses static Markdown files to power your Knowledgebase. MIT Nodejs

WikiDocs - A databaseless markdown flat-file wiki engine. MIT PHP/Docker

WiKiss - Wiki, simple to use and install. GPL-2.0 PHP

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-2.0 Haskell

Gollum - Simple, Git-powered wiki with a sweet API and local frontend. MIT Ruby

Otter Wiki - Simple, easy to use wiki software using markdown. MIT Docker

Pepperminty Wiki - Complete markdown-powered wiki contained in a single PHP file. MPL-2.0 PHP

Wikmd - Modern and simple file based wiki that uses Markdown and Git. MIT Python/Docker