Imagine a world in which every single human being can freely share in the sum of all knowledge.

Представьте себе мир, в котором каждый человек может свободно делиться всей суммой накопленных человечеством знаний.

Imaginez un monde dans lequel chaque être humain peut librement prendre part au partage de la totalité des connaissances humaines.

تخيل عالمًا يمكن فيه لكل إنسانٍ أن يشارك بحريةٍ في مجموع المعرفة.

Imagina un mundo en el que todo ser humano pueda compartir libremente la suma de todo el conocimiento.

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.

200,000+

Editors contribute to Wikimedia projects every month

68+ million

Media files on Wikimedia Commons

1+ billion

Unique devices access Wikimedia projects every month

Research

We conduct our own research and partner with researchers worldwide to address change in society and technology.

More about research

Technology

From site reliability to machine learning, our open-source technology makes Wikipedia faster, more reliable, and more accessible worldwide.

More about technology

Advocacy

We conduct our own research and partner with researchers worldwide to address change in society and technology.

More about advocacy

Projects

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.

Wikipedia puzzle globe

Wikipedia

Free encyclopedia written in 300 languages by volunteers around the world.

Wikimedia Commons logo

Wikimedia Commons

The world’s largest free-to-use-library of illustrations, photos, drawings, videos and music.

News Neues

See what we have been up to

World Intellectual Property Organization WIPO in Geneva, Switzerland

Six Wikimedia Chapters Rejected as Observers to the World Intellectual Property Organization (WIPO)

Geneva, Switzerland — Today, six Wikimedia chapters—independent Wikimedia movement affiliate organizations—were rejected from gaining accreditation to the World Intellectual Property Organization’s (WIPO) Standing Committee on Copyright and Related Rights (SCCR). WIPO is the specialized United Nations (UN) agency that determines global policies on copyright, patents, and trademarks. The Wikimedia chapters of France, Germany, Italy, Mexico,….

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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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Profiles

Wikimedians are heroes of free knowledge.

Emily Temple-Wood at Wikimania 2014
Emily Temple-Wood
Editor since 2007, Wikimedia community
Photo of Felix Nartey
Felix Nartey
Editor since 2012, Wikimedia community
Photo of Armine Aghayan
Arminé Aghayan
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.

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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