Miraheze is a free, United States, 501(c)(3) non-profit wiki hosting service operated by the WikiTide Foundation, that usesMediaWiki version 1.44.2 
as its hosting engine, and commits to upgrade to the most recent stable version.Miraheze auto-installs several MediaWiki extensions on new wikis, with users having the option to enable many other extensions on the wiki (and request new ones), includingVisualEditor andSemantic MediaWiki.Miraheze is supported by user donations and does not include any advertising on wikis it hosts.
Miraheze currently hosts more than 20,000 wikis.
Miraheze can download any MediaWiki extension, at the request of the operator of the wiki, provided that it passes a security review.Miraheze currently offers more than 300 extensions.You can see the list of currently supported extensionshere.
There are alsoExtensions by Miraheze, available as free open source software.
If requested, Miraheze provides support for custom domains, as long as the domain is pointed to themas it is said here.
Miraheze uses open-source code, and hosts it usingGitHub.
Miraheze uses their own extension, calledManageWiki in order to allow users on individual wikis to enable/disable extensions, change a variety of settings (their logo, their favicon, etc.), and change permissions and manage namespaces.
Miraheze usesPhorge for issue/bug reports, as well as requesting some features for wikis that are not included in the default ManageWiki options.
Miraheze currently functions with 49 different servers used for different purposes (MediaWiki, Varnish, Database, Puppet, Test, Swift, etc.).A list of these servers and each of their functions can be seenhere.
In 2023, a separate wiki farm called "WikiTide" forked from Miraheze following an internal dispute.Theymerged back together, under the Miraheze name but with the WikiTide Foundation taking over from Miraheze Limited as a governing body, in March 2024.They originally planned to rename the site to WikiTide as well, but the plan to rename the site wasindefinitely postponed following community opposition.