--
Wikimedia Projects – Wikimedia Foundation
Skip to content
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
Technology
The cost of ‘free’: How Wikimedia Enterprise protects Wikipedia in the AI era
Public policy
Wikimedia Foundation Challenges UK Online Safety Act Regulations
Equity
Wikimedia Foundation co-hosts second UN Open Source Week edit-a-thon
Search
Search
Search
Current language: en
English
العربية
Français
Español
Português
Donate now
You are here:
Home
What we do
Wikimedia Projects
Wikimedia Projects
The Wikimedia Foundation supports hundreds of thousands of people around the world in creating the largest free knowledge projects in history. The work of volunteers helps millions of people around the globe discover information, contribute knowledge, and share it with others no matter their bandwidth.
Table of Contents
Navigate within this page.
Reference
Reference
Collections
Technology
Guides
Collaboration
Reference
Wikipedia
All the world’s knowledge
Wikipedia is a free, collaborative encyclopedia written in over 300 languages by volunteers around the world.
Wikibooks
E-book textbooks and annotated texts
Wikibooks aims to build a collection of free e-book resources including textbooks, annotated texts, instructional guides, and manuals.
Wiktionary
A dictionary for over 170 languages
Wiktionary is a free multilingual dictionary. The project aims to describe all words of all languages. It includes language resources such as a thesaurus, rhyme guide, and language statistics.
Wikiquote
Find quotes across your favorite books, movies, authors and more
Wikiquote is an online collection of sourced quotations from notable people and creative works in over 75 languages. It also includes proverbs, mnemonics and slogans.
Collections
Wikimedia Commons
114 million images, photographs, videos and music files and counting
Wikimedia Commons is the world’s largest free-to-use library of illustrations, photos, drawings, videos, and music.
Wikisource
The free library
Wikisource is a library of freely-licensed source texts and historical documents, including poetry, government documents, constitutions of many countries, and general literature.
Wikiversity
Access learning resources, projects and research at any level of study
Wikiversity is devoted to learning resources, learning projects, and research for use in all levels, types, and styles of education.
Wikispecies
The free species directory
Wikispecies is a species database for taxonomy that covers living and fossil representatives of Animalia, Plantae, Fungi, Bacteria, Archaea, Protista and all other forms of life.
Technology
Wikidata
The database of structured information collaboratively edited
Wikidata acts as central storage of structured data for Wikimedia projects. Structuring data into a machine-readable format makes it easier to view, search, edit, curate, use and re-use files.
Wikifunctions
The library of code functions anyone can edit
Wikifunctions allows everyone to collaboratively create and maintain code functions that can be used to answer questions, such as how many days have passed between two dates, or the distance between two cities.
MediaWiki
The software platform that makes Wikipedia possible
MediaWiki is free and open source wiki software that anyone can use and develop. It is the platform on which Wikimedia projects are built.
Guides
Wikivoyage
The ultimate travel guide
Wikivoyage aims to create the world’s largest free, complete and up-to-date worldwide travel guide.
Collaboration
Meta-Wiki
Project coordination software tool for global collaboration
Meta-Wiki is a project used as a central hub for various coordination and organization tasks, such as discussions affecting multiple wikis or planning upcoming events.
Subscribe for news
Get the latest updates about the Wikimedia Foundation directly to your inbox.
Email Address*
Confirm choice*
Yes, I would like to receive updates, news, and promotional emails from the Wikimedia Foundation. I understand I can unsubscribe at any time.
* = required field
Alternative Email:
For more details, see our Privacy statement.
Help us unlock the world’s knowledge.
As a nonprofit, Wikipedia and our related free knowledge projects are powered primarily through donations.
Donate now
Photo credits
Roger B. Chaffee at a console in the Mission Control Center, Houston, during the Gemini-Titan 3 flight
File provided by Wikimedia Commons
NASA
Public domain
Royal Courts of Justice 2019
File provided by Wikimedia Commons
David Castor
CC0 1.0
UN WikiMediaNYC EditAThon 2026 HariAdivarekar 152
Hari Adivarekar
CC BY-SA 4.0
Art+Feminism Wikipedia edit-a-thon
File provided by Wikimedia Commons
Jens Mohr
CC BY-SA 3.0
Follow the Wikimedia Foundation on social media to get news and updates on our projects, global community, and advocacy efforts.
Instagram
Bluesky
Facebook
LinkedIn
Connect with Wikipedia on social media to learn new facts and know your world better
TikTok
LinkedIn
Instagram
Bluesky
Facebook
YouTube
Download the Wikipedia app
Who we are
What we do
What you can do
News
Frequently asked questions
Donate
Careers
Contact
Press
Research
Wikipedia Library
Wikipedia Store
Terms of use
Privacy policy
Disclaimers
Accessibility statement
Cookies statement
Except where otherwise noted, the content of this site is licensed under a Creative Commons Attribution-ShareAlike 4.0 International license. Powered by WordPress.com VIP.