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We support protect fund open
human knowledge

We are the nonprofit that hosts Wikipedia. We support the people, technology, and policies that enable reliable information to be shared with the world.

Help us support everyone’s access to reliable information. Why donate?

Celebrate Wikipedia’s 25th birthday

Mark this milestone by paying tribute to the hundreds of thousands of people that edit, write, and fact check the backbone of knowledge on the internet.

Is that Baby Globe?

The ever-curious birthday mascot might just be popping up on a Wikipedia near you.

By the numbers

Wikipedia is the backbone of the internet’s knowledge. From students to chatbots, everyone learns from it.

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Wikipedia receives nearly

15 billion

views each month.

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The Wikimedia Foundation supports nearly

265,000

volunteers every month.

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Every minute

324

new edits are made to Wikipedia.


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With over 65 million articles, in 300+ languages, Wikipedia is the home of trusted information online.

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Wikipedia is the only website among the top 10 most visited that is hosted by a nonprofit organization.

Our work

Read more about how we are supporting the people, policies, and products that make Wikipedia and Wikimedia projects possible.

Built for people, by people

Wikipedia is built by nearly 250,000 volunteers from all kinds of backgrounds. They edit articles, check facts, fix code, and help make the internet’s knowledge better. Meet some of them.

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Taufik Rosman

Malaysia

The 2023 Wikimedian of the Year, Taufik has been editing since he was 8 years old. He has expanded the Malay Wiktionary with nearly 11,000 changes. “Each of our contributions matters greatly,” Taufik says.

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Siobhan Leachman

New Zealand

Siobhan expands English Wikipedia with knowledge about notable women in biodiversity and natural history. Thanks to her, Wikipedia has information about all of New Zealand’s 1,800 endemic moth species.

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Armine Aghayan-Flisch

Switzerland

Writing a Wikipedia article each day for a hundred straight days is a feat. Arminé has done it thirteen times on the Armenian Wikipedia, while also uploading over 20,000 open-licensed images.

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Donatien Kangah

Côte d’Ivoire

The most visible part of Donatien’s French Wikipedia work is in the site’s coverage of African football. But behind the scenes, Danatien also runs an organization that expands Wikipedia’s knowledge of Côte d’Ivoire.

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Wilfredo Rodríguez

Canada

Prolific photographer Wilfredo has shared over 50,000 images with Wikimedia projects. Many come from his home country of Venezuela to preserve its beauty for the world’s benefit.

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Ellie Méndez

El Salvador

Ellie has collaborated with multiple El Salvadorean cultural institutions to expand Wikipedia’s coverage of women’s sports in Spanish and train people in updating the site.

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Mónica Paola Bonilla-Parra

Colombia

As the head of Wikimedia Colombia, Mónica works to encourage people to share knowledge on Wikipedia. “There are no limits to participating and contributing,” she says. “If you don’t do it, who will?”

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Alberto Leoncio

Brazil

Most work on Wikipedia happens behind the scenes and is performed by volunteers like Alberto. The time Alberto spends on technical tasks makes life easier for all other Portuguese Wikipedia editors.

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Alaa Najjar

MENA region

Alaa’s nearly 600,000 edits on Wikimedia projects have expanded the sites’ knowledge of medicine, anatomy, and biology. In thanks, he received the prestigious 2021 Wikimedian of the Year award.

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Nkem Osuigwe

Nigeria

Nkem is a connector: she brings volunteer Wikimedia editors and librarians from Africa together. Her work in organizing the first African Librarians Week generated nearly 28,000 improvements on Wikipedia.

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Ananya Mondal

India

A clinical nutritionist by trade, Ananya singlehandedly spearheaded an initiative to upload more images of butterflies onto Wikimedia projects. She’s since inspired people to upload over 15,000 new photos.

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Netha Hussain

Sweden

Netha uses her expertise as a doctor to ensure medical content on Wikipedia is accurate, well-sourced, and easily understood—from COVID-19 content during the pandemic to documenting misinformation around women’s health.

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Rosie Stephenson-Goodknight

United States

Rosie co-founded the Women in Red project, which is spearheading an effort to increase Wikipedia’s biographies about women in English. So far, they’ve added over 200,000 articles.

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Andrew Lih

United States

Long-time Wikipedian Andrew wrote The Wikipedia Revolution, a foundational book on the history of Wikipedia. Over the last two decades, he’s made over 760,000 improvements across Wikimedia projects.


Help expand
human knowledge

There are many different ways for you to support us. Here are some ideas for putting your skills and passions to use:

Donate

Join the readers who help fund Wikipedia

Edit

Join the community that builds Wikipedia

Participate

From coding to photography to organizing events, contribute your skills to advance free knowledge

Advocate

Help us protect everyone’s right to knowledge

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Photo credits

Open the Knowledge Journalism Awards - Exteded

ICFJ

Wikipedia 25 - Birthday blog header

Wikimedia Foundation

Bobby Shabangu and Michał Buczyński

JPC Photography and Jason Krüger for Wikimedia

2025 Wikipedia most read articles - Header 2

Wikimedia Foundation

WP25 Baby Globe - Celebration Balloons

Original by BaduFerreira, adaptation by Sharon Park, Axel Kinnear and Bex McNally for the Wikimedia Foundation

Wiki Globe illustration

Wikimedia Foundation

Wiki friendship illustration

Wikimedia Foundation

Wiki collaboration illustration

Wikimedia Foundation

Wiki world illustration

Wikimedia Foundation

Wiki Mobile Illustration

Wikimedia Foundation

Don Wong for Tiny Big Picture, commissioned by The Wikimedia Foundation