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MediaWiki is a collaboration and documentation platform brought to you by a vibrant community.

The MediaWiki software is used by [[<tvar name=1>Special:MyLanguage/Sites using MediaWiki</tvar>|tens of thousands of websites]] and [[<tvar name=2>Special:MyLanguage/MediaWiki testimonials</tvar>|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.
It's powerful, [[<tvar name=1>Special:MyLanguage/Localisation</tvar>|multilingual]], free and open, extensible, customisable, reliable, and free of charge.
[[<tvar name=1>Special:MyLanguage/Manual:What is MediaWiki?</tvar>|Find out more]] and [[<tvar name=2>Special:MyLanguage/Manual:Deciding whether to use a wiki as your website type</tvar>|if MediaWiki is right for you]].

Set up and run MediaWiki

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[[<tvar name=1>Special:MyLanguage/Download</tvar>|Download]], [[<tvar name=2>Special:MyLanguage/Manual:Installing MediaWiki</tvar>|install]] and [[<tvar name=3>Special:MyLanguage/Manual:System administration</tvar>|configure]] MediaWiki
Add functionality by installing [[<tvar name=1>Special:MyLanguage/Manual:Extensions</tvar>|extensions]]
Problems? See [[<tvar name=1>Special:MyLanguage/Manual:Common errors and symptoms</tvar>|errors and symptoms]] and [[<tvar name=2>Special:MyLanguage/Manual:FAQ</tvar>|FAQ]]
Don't own a server? Find [[<tvar name=1>Special:MyLanguage/Hosting services</tvar>|hosting services]]
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Join [[<tvar name=1>Special:MyLanguage/MediaWiki Stakeholders' Group</tvar>|MediaWiki Stakeholders]] user group

Edit and use MediaWiki

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Develop and extend code

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Read the MediaWiki [[<tvar name=1>Special:MyLanguage/Developer hub</tvar>|developer documentation]]
Visit the [<tvar name=1>https://developer.wikimedia.org</tvar> Wikimedia Developer Portal]

Get help and contribute

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Cannot find the answer to a problem with MediaWiki? Ask the [[<tvar name=1>Project:Support desk</tvar>|support desk]]!
[[<tvar name=1>Special:MyLanguage/How to contribute</tvar>|Get involved]] as a translator, designer, documentation writer, tester, tech ambassador, or developer
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