# MediaWiki > MediaWiki is a free and open-source wiki engine that powers Wikipedia and thousands of other websites. It is designed to handle extremely high traffic and large amounts of content while remaining extensible and multilingual. Managed by the Wikimedia Foundation, it is written in PHP and primarily uses the MySQL/MariaDB database backend. - URL: https://optimly.ai/brand/mediawiki - Slug: mediawiki - BAI Score: 94/100 - Archetype: Challenger - Category: Software - Last Analyzed: April 10, 2026 ## Competitors - Confluence (Atlassian) (https://optimly.ai/brand/confluence-atlassian) - DokuWiki (https://optimly.ai/brand/dokuwiki) - Notion (https://optimly.ai/brand/notion) ## Also Referenced By - Wiki.js (https://optimly.ai/brand/wiki-js) - WikiSync (https://optimly.ai/brand/wikisync) ## Buyer Intent Signals Problems: Manual Documentation/Static Sites: Using hard-coded HTML pages or an undocumented shared folder system for team knowledge. | Status Quo/Tribal Knowledge: Choosing not to document processes, leading to high tribal knowledge dependency and onboarding friction. Solutions: best open source wiki software | what software does wikipedia run on | enterprise knowledge management platform open source | collaborative ai writing workspace | self-hosted documentation tool | General Productivity Suites: Using generalized document platforms like Google Docs or Notion which lack the specific structured link/category architecture of a true wiki.