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Help protect Wikipedia and other public interest projects in the Global Digital Compact.
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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.
Protect and sustain Wikipedia
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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
Share on X100+ million
media files on Wikimedia Commons and counting
Share on X1.5 billion
unique devices access Wikimedia projects every month
Share on XResearch
We conduct our own research and partner with researchers worldwide to address change in society and technology.
More about research[Wikimedi...+]Technology
From site reliability to machine learning, our open-source technology makes Wikipedia faster, more reliable, and more accessible worldwide.
More about technology[Screen-S...+]Advocacy
We fight to protect everyone’s right to access free and open knowledge.
More about advocacy[SOPA_pro...+]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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Wikimedia Commons
The world’s largest free-to-use-library of illustrations, photos, drawings, videos and music.
See what we have been up to
The Wikimedia Endowment welcomes Mayree Clark as its newest Board member?
The Wikimedia Endowment is delighted to welcome Mayree Clark as a new member of its Endowment Board. Mayree, a finance expert, will bring her extensive governance expertise to the Wikimedia Endowment, a nonprofit charitable organization providing a permanent safekeeping fund to support the Wikimedia projects in perpetuity.
10 May 2024 By Wikimedia Foundation
Read moreUma nova carta aberta da Funda??o Wikimedia, a organiza??o sem fins lucrativos que opera a Wikip?dia e outros projetos Wikimedia, e afiliadas do Movimento Wikimedia ao redor do mundo, apela aos Estados Membros da ONU para protegerem a Wikip?dia e outros projetos de interesse p?blico no futuro Pacto Digital Global.
24 April 2024 By Wikimedia
Read moreWikimedians are heroes of free knowledge
[Photo of Pranayraj Vangari+]
Editor since 2013, Wikimedia community[Emily Temple-Wood at Wikimania 2014+]
Editor since 2007, Wikimedia community[Photo of Armine Aghayan+]
Editor since 2013, Wikimedia communityThroughout 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.
Help us unlock the world’s knowledge.
As a nonprofit, Wikipedia and our related free knowledge projects are powered primarily through donations.
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Photo credits
Mayree Clark File provided by Wikimedia Commons
Jeffrey Belisle
Tiny Big Picture
Tiny Big Picture for the Wikimedia Foundation
Pranayraj Vangari
Emily Temple-Wood at Wikimania 2014 File provided by Wikimedia Commons
Victor Grigas/Wikimedia Foundation
Armine Aghayan File provided by Wikimedia Commons
Victor Grigas
Tiny Big Picture - Homepage Banner
Tiny Big Picture for the Wikimedia Foundation
Wikimedia Conference 2017 File provided by Wikimedia Commons
Jason Kr?ger/Wikimedia Deutschland e.V.
Papaul_Tshibamba-3 File provided by Wikimedia Commons
Victor Grigas
SOPA protest in Midtown NYC File provided by Wikimedia Commons
Zachary McCune
[Wikipedia puzzle globe+]
Wikipedia logo File provided by Wikimedia Commons
Nohat; Paullusmagnus; Wikimedia
Wikimedia Commons logo File provided by Wikimedia Commons
Reidab; User:Grunt; 3247
Art+Feminism Wikipedia edit-a-thon File provided by Wikimedia Commons
Jens Mohr
[Wikimedia Foundation+]
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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