Wikimedia Foundation

The Wikimedia Foundation, Inc. (WMF) is an American 501(c)(3) nonprofit organization headquartered in San Francisco, California, and registered there as a charitable foundation. The foundation is most known for being the host of Wikipedia, one of the most visited websites in the world. It also hosts fourteen related open collaboration projects, and supports the development of MediaWiki, the wiki software which underpins them all. The foundation was established in 2003 in St. Petersburg, Florida by Jimmy Wales, as a non-profit way to fund Wikipedia and other wiki projects which had previously been hosted by Bomis, Wales' for-profit company.

Wikimania is the Wikimedia movement's annual conference, organized by the community of contributors and hosted by the Wikimedia Foundation. Topics of presentations and discussions include Wikimedia projects such as Wikipedia, other wikis, open-source software, free knowledge and free content, and social and technical aspects related to these topics.

social movement around Wikimedia including content publications, Wikimedia organizations, and independent editors

former project by the Wikimedia Foundation providing Wikipedia free of charge on mobile phones via zero-rating, abolished in 2018

VisualEditor (VE) is an online rich-text editor for MediaWiki-wikis that provides a way to edit pages based on the WYSIWYG (what you see is what you get) principle. It was developed by the Wikimedia Foundation in partnership with Fandom. In July 2013, it was enabled by default on several of the largest Wikipedia projects.

conference of Wikimedia community in India

history and relationship between Google and Wikipedia

thumb|WikiGrannies User Group logo Wikigrannies (, ) is a group of Wikipedia authors and Wikimedians of elderly age, partly organized as a Wikimedia user group. As a user group, they originate from Bashkortostan, and tend to include participants and colleagues from other regions and countries.

Annual conference supported by Wikimedia Foundation for contributors of the Wikimedia projects from Africa

Bangladeshi non-profit charitable organization

response to conflict of interest on Chinese Wikipedia

official Wikimedia organization in Poland

search engine

UK charity and chapter of the Wikimedia movement

US-based public charity and fiscal sponsor working to advance progressive policy

Wikimedia movement chapter and Israeli NFO