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Every year, Wikimedians from around the world gather at Wikimania, the free knowledge conference. Join us in Poland from August 7-10, in person or virtually.
Learn more and register today →
The nonprofit Wikimedia Foundation provides the essential infrastructure for free knowledge. We host Wikipedia, the free online encyclopedia, created, edited, and verified by volunteers around the world, as well as many other vital community projects. All of which is made possible thanks to donations from individuals like you. We welcome anyone who shares our vision to join us in collecting and sharing knowledge that fully represents human diversity.
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1
Wikimedia projects belong to everyone
You made it. It is yours to use. For free. That means you can use it, adapt it, or share what you find on Wikimedia sites. Just do not write your own bio, or copy/paste it into your homework.
2
We respect your data and privacy
We do not sell your email address or any of your personal information to third parties. More information about our privacy practices are available at the Wikimedia Foundation privacy policy, donor privacy policy, and data retention guidelines.
3
People like you keep Wikipedia accurate
Readers verify the facts. Articles are collaboratively created and edited by a community of volunteers using reliable sources, so no single person or company owns a Wikipedia article. The Wikimedia Foundation does not write or edit, but you and everyone you know can help.
4
Not all wikis are Wikimedia
The word “wiki” refers to a website built using collaborative editing software. Projects with no past or existing affiliation with Wikipedia or the Wikimedia Foundation, such as Wikileaks and wikiHow, also use the term. Although these sites also use “wiki” in their name, they have nothing to do with Wikimedia.
280,000+
editors contribute to Wikimedia projects every month
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Research
We conduct our own research and partner with researchers worldwide to address change in society and technology.
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Technology
From site reliability to machine learning, our open-source technology makes Wikipedia faster, more reliable, and more accessible worldwide.
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Advocacy
We fight to protect everyone’s right to access free and open knowledge.
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Collaborative projects are the core of the Wikimedia movement
Our volunteers build tools, share photos, write articles, and are working to connect all the knowledge that exists.
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Wikipedia
Free encyclopedia written in over 300 languages by volunteers around the world.
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See what we have been up to
Wikimedia Foundation
Yesterday, the Wikimedia Foundation, the nonprofit that hosts and supports Wikipedia and other Wikimedia projects, was again denied accreditation as a permanent observer to the World Intellectual Property Organization (WIPO).
ByWikimedia Foundation
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Wikimedia Foundation Wikipedia
There has been recent media coverage regarding a decision by Wikipedia’s volunteer community on the reliability of the Anti-Defamation League as an encyclopedic source in specific subject areas. In an effort to promote better understanding of how Wikipedia works, the Wikimedia Foundation has issued a statement.
ByWikimedia Foundation
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Wikimedians are heroes of free knowledge
Editor since 2013, Wikimedia community
Editor since 2007, Wikimedia community
Editor since 2013, Wikimedia community
Throughout history, knowledge has been controlled by a powerful few. Wikipedia needs knowledge from all languages and cultures. The internet has become the default for accessing information—women, people of color, and the global south remain underrepresented. We invite you to help correct history.
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Photo credits
Green Roof at the WIPO Headquarters 10
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Emmanuel Berrod
CC BY-SA 4.0
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Wikimedia Foundation
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Pranayraj Vangari
Pranayraj Vangari
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Emily Temple-Wood at Wikimania 2014
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Victor Grigas/Wikimedia Foundation
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Armine Aghayan
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Victor Grigas
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Wikimedia Conference 2017
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Jason Krüger/Wikimedia Deutschland e.V.
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Papaul_Tshibamba-3
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Victor Grigas
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SOPA protest in Midtown NYC
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Zachary McCune
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Nohat; Paullusmagnus; Wikimedia
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Reidab; User:Grunt; 3247
Public domain
Art+Feminism Wikipedia edit-a-thon
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Jens Mohr
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The Wikimedia Foundation, Inc is a nonprofit charitable organization dedicated to encouraging the growth, development and distribution of free, multilingual content, and to providing the full content of these wiki-based projects to the public free of charge.
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