Wiki

A web-based platform enabling users to collaboratively create, modify, and link content with simple markup, exemplified by the world-leading Wikipedia.

A wiki is a collaborative, web-based software system allowing any user to quickly create and edit content directly via a browser; the name derives from the Hawaiian word for 'quick' (wiki wiki). Ward Cunningham introduced the first wiki, WikiWikiWeb, in 1995, defining it as 'the simplest online database that could possibly work.' This technology centralizes knowledge management, using hyperlinks to connect pages and revision control to track all changes. The open-source MediaWiki software, which powers the 65+ million articles on Wikipedia, is the definitive implementation, demonstrating the technology's massive scalability and impact on global information sharing.

https://www.mediawiki.org/