Who we are
We are the non-profit organization behind Wikipedia.

Get to know us
People

Board of Trustees

Executive team

Staff

Reports

Annual reports

Financial reports

Transparency reports

Careers

Frequently asked questions
What we do

Our technology supports the backbone of knowledge on the internet.

Learn more about our work

Wikimedia projects

Technology

Public policy

Closing knowledge gaps
What you can do
The more people take part, the better the internet’s knowledge gets.
Donate

Donate to help keep Wikipedia free and accessible.

Become a monthly donor

Ways to give

Reasons to donate

Leave a gift in your will

Manage a recurring donation

Volunteer

From editing to organizing, find out how you can get involved.

Advocate

Help us protect Wikipedia and the people who make it possible.
News
Stay up to date on our efforts to protect free knowledge.

Find out more
Public policy

The Wikimedia Foundation files to protect open knowledge in New York Times v OpenAI case

Technology

OpenAI “rogue” agent activities found on Wikimedia projects

Public policy

Human knowledge at stake: Wikimedia Foundation makes its case at the United Nations General Assembly
Search

Search
Search

Participate

Learn something new. Contribute what you know.

Wikimania 2014 at the Barbican in London

Wikimedia projects are made by volunteers. Like you.

Editors contribute new articles and improve current articles. Developers write and debug the code that makes the wikis go. Galleries, libraries, archives, and museums share their collections and expertise. All of us have knowledge to share. Here’s how to join our global community.

Get involved as a Wikipedia editor

No previous experience is needed to start editing Wikipedia. Visit the Teahouse for a friendly place to learn about editing. Veteran editors answer questions and help new editors become accustomed to Wikipedia culture.

Join an event or online community

Edit-a-thons and WikiProjects bring people with similar interests together to create and improve Wikipedia articles around a common theme. There are frequent workshops to train new editors.

Find your local Wikimedia community

There are 185 active Wikimedia affiliates around the world. Each supports Wikimedia projects within a geographical region or thematic area. Find yours.

Contribute your coding skills

Our global technical community welcomes volunteer developers of all levels. We host hundreds of software projects in many different domains. It’s easy to get involved.

Galleries, libraries, archives and museums

Wikimedia projects offer GLAMs and other institutions a powerful platform to share digital collections, institutional knowledge, and expertise with the public.

Share your institution’s knowledge

185

active Wikimedia affiliates around the world

300+

languages represented across all Wikipedias

See what we have been up to

Paris hosts Wikimania 2026 as Wikipedia celebrates 25 years of free knowledge

Community

Wikimania 2026, the flagship annual conference celebrating Wikipedia, Wikimedia projects, and the volunteers who make them possible will take place in France for the first time from 21–25 July.

22 July 2026 By Wikimedia Foundation

The winners of the 2025 Wiki Loves Monuments photo contest

Community

Now on its 16th edition, Wiki Loves Monuments still retains its crown as the world’s largest photo contest. Each year since 2010, photographers from around the globe have come together to celebrate cultural heritage through their camera lens—and donate it all to benefit Wikimedia’s freely shared knowledge. Despite Wiki Loves Monuments’ size and scope, it….

29 April 2026 By Wikimedia Foundation