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The MediaWiki software is used by tens of thousands of websites and thousands of companies and organisations. It powers Wikipedia and also this website. MediaWiki helps you collect and organise knowledge and make it available to people.
Set up and run MediaWiki
Installing MediaWiki and System administration MediaWiki Add functionality by installing extensions Problems? See errors and symptoms Don't own a server? Find hosting services
Edit and use MediaWiki
Learn how to navigate Learn how to edit a page Learn more about reading, editing, and personal customisation
Develop and extend code
Read the MediaWiki developer documentation Visit the Wikimedia Developer Portal
Get help and contribute
Cannot find the answer to a problem with MediaWiki? Ask the support desk! Get involved as a translator, designer, documentation writer, tester, tech ambassador, or developer Report wrong software behaviour or a feature proposal