Fandom - The entertainment site where fans come first.
Zim Wiki - Zim is a graphical text editor used to maintain a collection of wiki pages. Each page can contain links to other pages, simple formatting and images.
Miraheze - Miraheze is a wiki farm (hosts wikis) for free and with no ads, it also provides custom domains...
TiddlyWiki - a non-linear personal web notebook
Wikiful - Wikiful is an online platform that makes it easy to build and share a wiki.
Wiki on a Stick - Self-contained desktop wiki