What are some alternatives?
When comparing Helpie Knowledge Base Wiki Plugin and DokuWiki, you can also consider the following products
MediaWiki - MediaWiki is a free software wiki package written in PHP, originally for use on Wikipedia.
AMuseWiki - Amusewiki is more than just a wiki engine, it’s also a powerful authoring, archiving and publishing platform.
TiddlyWiki - a non-linear personal web notebook
WordPress - WordPress is web software you can use to create a beautiful website or blog. We like to say that WordPress is both free and priceless at the same time.
Confluence - Confluence is content collaboration software that changes how modern teams work
VuePress - A static site generator by Vue.js 🛠️