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
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
- 2026-06-20
Team Challenges at Wikimania 2026: Registration for the Team Challenges closes on June 20th at 11pm UTC.- 2026-05-01 to 2026-05-03
- Wikimedia Hackathon 2026 in Milan, Italy. Registration closed March 30, 2026.
- 2026-04-01
- Maintenance release: 1.43.8 / 1.44.5 / 1.45.3 is now available.
- 2026-03-31
Security and maintenance release: 1.43.7 / 1.44.4 / 1.45.2 are now available.- 2026-03-25 to 2026-03-27
- MediaWiki Users and Developers Conference Spring 2026 in Salt Lake City, Utah, USA.
- 2025-12-17
- Maintenance release: 1.39.17 is now available.
- 2025-12-10
- Security and maintenance release: 1.39.16 / 1.43.6 / 1.44.3 / 1.45.1 are now available.
- 2025-12-08
MediaWiki 1.45.0 is now available.