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

Meta-Wiki; Wikimedia Outreach; Multilingual Wikisource; Wikispecies; Wikibooks; Wikidata; Wikifunctions; Wikinews; Wikiquote; Wikisource; Wikiversity; Wikivoyage; Wiktionary; Wikidata …

Every wiki can be changed, or edited, by anyone who has an account on the wiki, or by everyone in the world if the wiki allows it. Some important pages can only be changed by certain users. …

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Meta-Wiki Community coordination & documentation The Wikimedia Foundation is the non-profit organization that hosts all Wikimedia projects and supports communities all over the world …

Jun 7, 2025 · The best way to start wiki-ing is to find an existing wiki (that is, a hosted wiki) and start adding to it.

The interface may be a source editor, which is text-based and employs a lightweight markup language (also known as wikitext, wiki markup, or wikicode), or a visual editor. For example, in …

Jun 16, 2025 · Wikipedia uses collaborative software known as a wiki that facilitates the creation and development of articles.

Users can freely use it, share it, and change it, without having to pay. It is also one of the biggest wiki organizations. People can choose to give money to the Wikimedia Foundation to fund …

The English Wikipedia is the primary [a] English-language edition of Wikipedia, an online encyclopedia.It was created by Jimmy Wales and Larry Sanger on 15 January 2001, as …