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Note: this page is about the wiki site specifically for help, administration and development of the MediaWiki 'wiki engine' software.
For a comprehensive list here on WikiIndex of the diverse array wikis powered by the MediaWiki software, see: category:MediaWiki.
175px-MediaWiki-2020-logo.svg.png wiki
Recent changes • WikiNode • About • Mobile URL
Founded by: Kate
Status: Vibrant
Language: Multilingual
Edit mode: OpenEdit
Wiki engine: MediaWiki
Wiki license: Multi-license
Main topic: MediaWiki
Backups: unknown or dynamic date
Wiki size: 60,630 article pages see stats

(As of: 2023-06-12) is the official wiki site for the 'MediaWiki' wiki engine software and associated add-ons, called 'Extensions' — and nothing else related to MediaWiki or the Wikimedia Foundation (WMF).

The wiki now provides all documentation, technical support, development, and surrounding information for the MediaWiki software. Historically, before the wiki site was created, most of the development and user support information was to be found at Wikimedia Meta-Wiki; an older site, which deals with meta subjects relating to all WMF projects and wikis. The slightly newer wiki site became the sole place for development, support and documentation of the MediaWiki software, and much of the earlier software-specific content originally created on the Wikimedia Meta-Wiki has now been moved across to the wiki.

Both sites are run by the 'not-for-profit' Wikimedia Foundation (WMF); who oversee MediaWiki development, and who also own and run the Wikipedia empire, and all its sister projects. wiki is an extremely active and dedicated community; its members include software developers (for both the core MediaWiki software, and the many add-on Extensions), editors of other WMF wikis, and owners / sysops of other independent wiki sites which also use the MediaWiki software. Major portions of the wiki are multilingual, but the primary working language is English.

Textual content of the wiki site is released under a dual license: the Creative Commons Attribution Share Alike 3.0 Unported License (CC BY-SA 3.0) and the earlier GNU Free Documentation License (GNU FDL or GFDL), as detailed in the Wikimedia Foundation Terms of Use. However, the actual MediaWiki software is released for free under version 2 of the GNU General Public License (GPL v2), whereas the many related add-on extensions may be released under the GPL, or any other license which their original developer deemed fit.


The wiki site has very few written policies and guidelines, and sysop actions are rarely discussed in any centralized forums. Deletion decisions, for example, are usually made unilaterally by sysops, rather than being processed through 'x for deletion' pages. Therefore, has been compared to Hollywood depictions of the 'old west' in which, after sheriffs (i.e. sysops) have been selected, there is little oversight of what they do.

See also
External links

current Wikimedia Foundation (WMF) logo

Wikimedia Foundation, Inc. (WMF), founded 20 June 2003, is the wiki company and non-profit charitable organization[1] responsible for a very large number (over 900 in total) of very active collaborative user-generated wiki sites, which are grouped together by primary subject and known as a 'project'; as well as the wiki engine software initially developed by themselves, known as MediaWiki. The Wikimedia Foundations' major wiki projects started with Wikipedia (encyclopedia), and subsequently expanded to include Wiktionary (dictionary and thesaurus), Wikiquote (quotations), Wikibooks (open content textbooks), Wikisource (free content primary-source and secondary-source texts), Wikinews (news source), Wikiversity (open learning community), Wikispecies (free species directory), and many others as listed below. Most of these 'projects' have separate wiki site versions written in many different languages. There is also the Wikimedia Commons (shared repository for documents, images, videos, and other media and text files), Wikidata (central space knowledge base for data used on all WMF projects), and the Wikimedia Meta-Wiki (coordination of issues common to all Wikimedia projects). The Wikimedia Foundations' global reach is nurtured in its Incubator, where all new language versions for all projects are initiated and developed before being launched as a new separate wiki site. The Foundations' most recent major project, Wikivoyage (a 'travelpedia'), was inducted to WMF in late 2012.

Wikimedia Foundation, Inc. is a member of the Open Source Initiative (OSI). Furthermore, the Wikimedia Foundation is a United States 501(c)(3) non-profit organization, granted April 2005, and headquartered at 1 Montgomery Street, Suite 1600, San Francisco County, State of California 94104, United States of America.[2]

All Wikimedia Foundation projects, wiki sites, portals, and websites (viewedittalk)

Wikipedia • Wiktionary • Wikiquote • Wikibooks • Wikisource • Wikinews • Wikiversity • Wikispecies • • Commons • Commons Archive • Wikidata • Wikidata Test • Wikivoyage • Meta-Wiki • Incubator • Wikitech • Wikitech Test • Wikimedia Foundation •

Chapters • Thematic organizations • User groups • Wikimania • Outreach • Labs • Toolserver • Toolforge • Statistics • Phabricator • Beta Cluster • Downloads • Analytics • Software Releases • Documentation • Lists • Blog • Shop • Donate • Login • Diff • API Portal

original Wikimedia Foundation (WMF) logo from 2003
subsequent Wikimedia Foundation (WMF) logo
Wikimedia Foundation private and management wikis

Board • BoardGovCom • Foundation Governance • Office • Executive • Internal • Affiliations Committee • OTRS • Collab • Movement Roles • Audit Committee • Search Committee • Advisory Board • Quality • Usability Initiative • Strategic Planning • SP-Com • Stewards • CheckUser • Advisors • Thank You

Wikimedia Foundation hosting services

Wikimedia Cloud Services • Wikimedia Cloud VPS

External links
Official WMF social media and networking
Further reading

Any red links above need the {{Wiki}} infobox template (if appropriate), their Wikimedia Foundation wiki site (or website) URLs, the {{Wikimedia-stub}} template (if needed), and this {{Wikimedia Foundation}} navigation template added.