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

The journey to make Wikipedia’s technology more equitable

I will start by saying that I am a process-turned-product person. That is, I’m a process-turned-product person with a passion for making systems just, equitable, and transparent. It’s these values that drew me to the Wikimedia Foundation in the first place. I wanted to be part of the nonprofit with a vision where everyone, everywhere has access….

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Saint George Cathedral and bell tower

The Wikimedia Foundation stands with its communities around the world in defending free knowledge in the face of threats from the Russian government

Цей пост також доступний українською мовою.Этот пост также доступен на русском языке. On 1 March 2022 the Wikimedia Foundation received a Russian government demand to remove content related to the unprovoked invasion of Ukraine posted by volunteer contributors to Russian Wikipedia. The Wikimedia Foundation and the movement we are part of have never backed down….

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