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.
DokuWiki - DokuWiki is a simple to use and highly versatile Open Source wiki software that doesn't require a database.
Scribbleton - The little personal wiki.
Wiki.js - An open source, modern and powerful wiki app built on Node.js, Git, and Markdown.
MyInfo - MyInfo is the most versatile organizer for Windows
TiddlyWiki - a non-linear personal web notebook