About

MediaWiki (MW) is a free and open-source wiki application licensed under GPLv2+ that powers Wikipedia and other Wikimedia projects. It is written in PHP and is run on an Apache server with a SQL relational database management system, usually MariaDB, MySQL or PostgreSQL. These pieces of prerequisite software, when installed together on a Linux operating system, like Ubuntu, are often referred to as a LAMP stack.

MediaWiki also has several extensions that can be used to extend its functionality, including several that come bundled with the latest releases of the software such as:

  • Cite, which adds citation functionalities and footnote capabilities.
  • Gadgets, which enables users to add JavaScript and CSS-based "gadgets" to the Wiki, for example, wikEd.
  • ImageMap, which allows users to insert pieces of text (potentially hyperlinked text) into images, such as annotations.
  • ParserFunctions, which adds parser functions as {{#if:}} and other conditionals.
  • WikiEditor. WikiEditor changes the edit interface, that is, what users see when they edit Wiki pages. It adds several tools to aid users in editing Wiki pages.

Further reading

Resources for immediate online help

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