Technology

We keep Wikimedia projects fast, reliable, and available to all.

From hosting Wikipedia to creating edit-checking artificial intelligence (AI), we design and build the open-source technology that powers Wikimedia projects. Community volunteers and Foundation technologists collaborate on MediaWiki, the platform that makes sharing free knowledge possible.

Hosting the world’s knowledge

Wikipedia is the fifth most-visited website in the world, with more than 6,000 visits every second. Our infrastructure keeps it online. Over the last year, we delivered an uptime of 99.97% (according to independent monitoring) across all project sites.

Saving data costs for readers

More than half of Wikimedia’s visitors connect from mobile devices. But high mobile data costs across Africa, Latin America, and Asia can make accessing Wikipedia expensive. That is why we redesigned our apps and sites to be up to 51% less data intensive.

Assisting human collaboration with machine learning

Anyone can edit Wikipedia, and it can be challenging to maintain quality control. That is why we made ORES, an artificial intelligence service that automatically identifies potentially problematic content as soon as it appears, advising editors if changes are needed.

Helping NASA

NASA’s internal wiki for collaboration and documentation is built on MediaWiki, just like Wikipedia. We create MediaWiki—open-source wiki software that is free and available for anyone.

Mentoring new developers

To help build a more diverse and inclusive technical community, the Wikimedia Foundation funds, supports, and mentors new developers and underrepresented groups in tech.

Growing a volunteer developer community

Over half of the commits made to our codebase are pushed by volunteers. We actively support a thriving volunteer technology community, with grants, events, and an open collaboration tool.

Help us unlock the world’s knowledge.

As a nonprofit, Wikipedia and our related free knowledge projects are powered primarily through donations.

Donate now

99.97%

uptime delivered across all Wikimedia sites during 2017

1 billion+

unique devices access Wikimedia sites every month

6,000

views per second across Wikimedia sites

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Questions about MediaWiki or the Wikimedia Foundation’s technology efforts? Get in touch with our developer community.
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News Noticias

Margeigh Novotny and Anusha Alikhan

Wikimedia Foundation appoints new Vice President of Communications, Vice President of Product Design

8 October 2021, San Francisco, California — The Wikimedia Foundation today announced the appointment of two new Vice Presidents: Anusha Alikhan as Vice President of Communications, and Margeigh Novotny as Vice President of Product Design. The Wikimedia Foundation is the nonprofit organization that supports Wikipedia and other free knowledge projects. With this news, both Anusha….

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Trees in Sequoia National Park

Supporting Wikipedia and the environment: The Wikimedia Foundation and Plant Your Change collaborate to plant 400,000 trees

Update: Thanks to the generosity of Wikipedia donors, we were able to meet our goal of planting 400,000 trees! If you have not yet given to Wikipedia and are able to, we are grateful for your support. Visit donate.wikimedia.org to make a contribution. Timed with our 2020 end-of-year fundraising campaign on English Wikipedia, the Wikimedia….

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