MediaWiki is a collaboration and documentation platform brought to you by a vibrant community.
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. It's powerful, multilingual, free and open, extensible, customisable, reliable, and free of charge. Find out more and if MediaWiki is right for you.
Set up and run MediaWiki
- Download, install and configure MediaWiki
- Add functionality by installing extensions
- Problems? See errors and symptoms and FAQ
- Don't own a server? Find hosting services
- Get professional development and consulting
- Join MediaWiki Stakeholders user group
Edit and use MediaWiki
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
News
- 2026-05-01 to 2026-05-03
- 👁 Maintenance update
Wikimedia Hackathon 2026 in Milan, Italy. Registration closed March 30, 2026. - 2026-04-01
- 👁 Maintenance update
Maintenance release: 1.43.8 / 1.44.5 / 1.45.3 is now available. - 2026-03-31
- 👁 Security
Security and maintenance release: 1.43.7 / 1.44.4 / 1.45.2 are now available. - 2026-03-25 to 2026-03-27
- 👁 Maintenance update
MediaWiki Users and Developers Conference Spring 2026 in Salt Lake City, Utah, USA. - 2025-12-17
- 👁 Maintenance update
Maintenance release: 1.39.17 is now available. - 2025-12-10
- 👁 Security
Security and maintenance release: 1.39.16 / 1.43.6 / 1.44.3 / 1.45.1 are now available. - 2025-12-08
- 👁 Release
MediaWiki 1.45.0 is now available.
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