Wikipedia is a free online encyclopedia, created and edited by volunteers around the world and hosted by the Wikimedia Foundation.

Wikipedia is a collaborative project that creates and maintains free content encyclopedias in over 300 languages. It was founded in 2001 by Jimmy Wales and Larry Sanger, and is hosted by the Wikimedia Foundation.

A free encyclopedia, like any other form of free knowledge, can be freely read, without getting permission from anyone. Free knowledge can be freely shared with others. Free knowledge can be adapted to your own needs. And your adapted versions can be freely shared with others.

Wikipedia logo featuring Wikipedia's slogan, "The Free Encyclopedia" The subtitle of Wikipedia is the free encyclopedia that anyone can edit.

An online encyclopedia, also called an Internet encyclopedia, is a digital encyclopedia accessible through the Internet. Examples include Encyclopedia.com since 1998, Encarta from 2000 to 2009, Wikipedia since 2001, and Encyclopædia Britannica since 2016.

Learn about the history and features of online encyclopedias, including Wikipedia, the free content, multilingual project. Find out how to access, contribute, and cite online sources.

Anyone can improve Wikipedia, and more than 23 years of volunteer editors giving their time and talents to the project have made Wikipedia history's most comprehensive encyclopedia. Its editors add quality and quantity, remove misinformation, and fix errors and vandalism .

Learn about the Simple English Wikipedia, a free encyclopedia for people who are learning English. Find out how to write, edit, and use articles in simple language, and how to access other wiki projects.