Wikimedia Foundation’s cover photo
Wikimedia Foundation

Wikimedia Foundation

Software Development

San Francisco, CA 112,777 followers

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

About us

We are the nonprofit organization that operates Wikipedia and the other Wikimedia free knowledge projects. We host a technology infrastructure that makes possible billions of monthly visits to Wikipedia. Since 2003, we have supported the hundreds of thousands of volunteer editors who edit, expand, and curate the Wikimedia projects. We equip these volunteers with the most up-to-date tools, ensure connections to Wikipedia are fast, safe, and private, and develop new technology and products to meet the demands of our readers and editors. We provide individuals and organizations around the world with funding to increase the knowledge on Wikipedia. We also undertake legal and advocacy efforts to protect people’s right to free knowledge. We are a charitable, not-for-profit organization that relies on donations. We receive donations from millions of individuals around the world, with an average donation of about $11. We also receive donations through institutional grants and gifts. We are a United States 501(c)(3) tax-exempt organization with offices in San Francisco, California.

Website
https://wikimediafoundation.org
Industry
Software Development
Company size
501-1,000 employees
Headquarters
San Francisco, CA
Type
Nonprofit
Founded
2003
Specialties
Non-Profit, Free knowledge, Internet, Technology, Mobile, Open Source, Education, and Wikipedia

Locations

Employees at Wikimedia Foundation

Updates

  • Wikimedia Foundation reposted this

    Lexica, a Wikidata-powered tool, wins the Coolest Tool Award at Wikimania! 🏆 Editing Lexemes directly on Wikidata requires contributors to understand concepts such as Lexemes, Senses, Forms, and their related properties before making a relatively small edit. This makes contributing to Wikidata Lexemes difficult, particularly for contributors using mobile devices or those unfamiliar with the Lexeme data model. 📱 Inspired by this challenge, the WikiCollabs team developed Lexica: a mobile friendly web application that makes it much easier to contribute to Wikidata’s lexicographical data. By simplifying editing and making contributions more accessible, Lexica has helped lower the barrier to participation for the Wikimedia community. In recognition of its impact, the Lexica team received the Coolest Tool Award at Wikimania in Paris. 🎉 Congratulations to the team and everyone involved in building tools that make contributing to free knowledge easier and more inclusive! Have you tried Lexica yet? What has your experience been like? Let us know in the comments! 💬 https://lnkd.in/e4fZSBJd #technology #OpenData #CommunityFirst #Wikimania

    • Coolest Tool Award 2026 logo above tool name 'Lexica' and its logo in the Wikidata colours. Below, 3 screenshots of the lexica user interface (on mobile)
  • The Wikimedia movement is built offline, too. And you can be a part of that. Volunteers organize events around the world, including regional and thematic conferences, meetups, and edit-a-thons that bring communities closer. Editors, developers, researchers, translators, and partners come together to share ideas and strengthen the work behind Wikimedia projects. Get inspired for your next Wikimedia event ➡️ https://w.wiki/9xnp

    • A woman holding a microphone and talking enthusiastically. Text reads: Beyond Wikimania. Volunteers organize many offline, community-led Wikimedia gatherings each year across the world.
  • Thank you, Paris, for an unforgettable Wikimania! Almost 3,250 people have attended the conference – 1,250 in person and almost 2,000 online. This was the first Wikimania for about one third of them! Together, all attendees have over 150,000,000 edits on Wikimedia projects 💡 Thank you for being part of our global community. See you next year! 🇨🇱

  • Meet the 2026 Wikimedian of the Year award winners 🌟 Every year, these awards recognize contributors who have made a lasting impact on the Wikimedia movement. Editors, organizers, developers, photographers... The people making free knowledge a reality! Winners were announced live during the opening ceremony of Wikimania 2026. 🏆 Wikimedian of the Year: Jules Xénard (User:Jules*) 🏅 Honorary Mention: Mari Avetisyan 🏅 Honorary Mention: Hijiri Umemoto (User:Hijiri) 🫂 Community Connector: Chlod Alejandro (User:Chlod) 🎖️ Wikimedia Laureate: User:Barkeep49 🎖️ Wikimedia Laureate: Britta Gustafson (User:Dreamyshade) Learn more ➡️ https://w.wiki/SfHp

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