The Wikimedia Foundation is the nonprofit that hosts Wikipedia and our other free knowledge projects. We want to make it easier for everyone to share what they know. To do this, we keep Wikipedia and Wikimedia sites fast, reliable, and available to all. We protect the values and policies that allow free knowledge to thrive. We build new features and tools to make it easy to read, edit, and share from the Wikimedia sites. Above all, we support the communities of volunteers around the world who edit, improve, and add knowledge across Wikimedia projects.

Meet our staff and contractors

Over 300 staff and contractors support Wikimedia projects, communities, donors, and readers.

Work with us

We are taking on a huge challenge: free knowledge for all. View open positions and learn about working for the Foundation.

Meet our leadership

The Wikimedia Foundation leadership team oversees departments, internal teams, and staff.

Meet our Board of Trustees

The Wikimedia Foundation Board of Trustees oversees our work. The Board is the Foundation’s ultimate corporate authority.

View our financials

We publish detailed financial reports that include audited financial statements and budgets.

The Wikimedia Foundation mission

To empower and engage people around the world to collect and develop educational content under a free license or in the public domain, and to disseminate it effectively and globally.

Knowledge belongs to all of us.

See the impact of your donations and contributions.

Where your money goes

53 million

media files on Wikimedia Commons, the free media repository

1 billion

unique devices visit Wikimedia Foundation sites every month

Connect — Conecta

Stay up-to-date about the Wikimedia Foundation

Get email updates

Subscribe to news about ongoing projects and initiatives.

Contact a human

Questions about the Wikimedia Foundation or our projects? Get in touch with our team.


View what we plan to accomplish this year and next. The 2017–2018 annual plan ends June 30. The 2018–2019 plan begins July 1.

Annual fundraising reports offer a transparent view of our fundraising operations, successes, and future plans.

Grants support impact-driven individuals, groups, and organizations whose efforts support our free knowledge mission.

Wikimedia movement affiliates support work focused on a specific theme, topic, or subject within or across countries and regions.

Ten years of annual reports cover the activities and impact of the Foundation.

See all official policies of the Wikimedia Foundation, including those for our wiki-related projects, Board, and staff.

Help us unlock the world’s knowledge.

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


Photo credits

Wikimedian looking to the sky

Screen Shot 2018-07-30 at 1.36.05 PM

Two conference attendees look at photos in Berlin

Looking at Wikimedian portraits

Habib M’henni

CC BY-SA 4.0

Lighting through the ages

Lighting through the ages

Maurice Dessertenne

Public domain