MediaWiki is a free software wiki package originally written for Wikipedia. It is now used by several other projects of the non-profit Wikimedia Foundation and by many other wikis.
MediaWiki is a free and open source wiki software, used to power wiki websites such as Wikipedia, Wiktionary and Commons, developed by the Wikimedia Foundation and others. It also runs thousands of other websites. It is written in the PHP programming language and uses a backend database.
Current version MediaWiki 1.21.1.
Hosting plan requirements MYSQL 4.1 or MYSQL 5.0, WINDOWS or LINUX, PHP 5.3