When comparing gollum vs MDwiki, the Slant community recommends gollum for most people. In the question“What is the best cross-platform note-taking app?” gollum is ranked 51st while MDwiki is ranked 70th.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Git backend
Pro Markdown based
Pro File upload via drag and drop
Pro Possibly more secure on web server
Due to the lack of a built-in editor MDwiki may be less susceptible to spam and defacement compared to other options when served from a web server.
Pro Doesn't require a web server
MDwiki is a self-contained JavaScript app that is very fast and can run in some web browsers such as Mozilla Firefox.
Cons
Con No offline client
When editing the Wiki offline, it has to cloned via git and a text editor has to be used.
Con Has to be installed on linux
Con External program must be used for editing
A separate program must be used to make changes to documents as MDwiki lacks a built-in editor.
Con Requires additional permissions in Google Chrome
Supposedly, you can get it to work in Google Chrome by modifying JavaScript permissions, but these same changes may decrease security.