MediaWiki Alternatives for Self-Hosted

TiddlyWiki is a personal wiki and a non-linear notebook that provides an interactive way to manipulate and structure data for web consumption. The free and open source application is written as an SPA (Single Page Application) with JavaScript by Jermolene. TiddlyWiki is designed from the ground up to easy to customize and re-shape depending on your use-case, while also providing tools that can be used to split up and reuse content.

BookStack is a free and open-source, self-hosted, easy-to-use platform for documenting, organizing and storing information. BookStack is written in PHP, on-top of the Laravel Framework and can be hosted on most web hosting platforms, VPSs and cloud instances. The software is configurable and allow you to setup BookStack for your particular user case. It allows you to change, the name, logo, theme and registration options. It also provides a page editor with a simple WYSIWYG interface that can be used to edit content by anyone. BookStack is developed as a truly free and open software and is released under the MIT license.

With Wiki.js you can run a blazing fast Wiki built with performance in mind. Wiki.js is an extensible, free and open source Wiki software written in JavaScript. Wiki.js brings a modern approach to documentation and Wiki writing, it provides a simple to use WYSIWYG editor, a Markdown editor and a visual builder to please all types of workflows. All content moderation is also tracked on a Wiki.js-powered site, which means that you can an revert to a previous state or recover a deleted page at any time and get a broad overview of content evolution. Allowing you to visually compare two versions of the same page to see exactly what changed. Wiki.js runs on virtually any platform and is compatible with either PostgreSQL, MySQL, MariaDB, MS SQL Server or SQLite.

Developed for more than 10 years, XWiki is a long standing project trusted by individuals and high profile corporations. XWiki is a free and open source Wiki software written in Java and released under the GNU Lesser General Public License. XWiki provides a WYSIWYG editing, OpenDocument based document import/export, semantic annotations and tagging, and advanced permissions management fit for enterprise use. The extensible XWiki platform allow you to customaize and improve your Wiki as the content, userbase or usecase grows and evolves.

Foam is a free and open-source, personal knowledge management and sharing system for Visual Studio Code and GitHub. The project takes inspiration from the Roam Research app. With Foam you can organize research, writing long-form content discover old notes and if you please, publish it all to the web.