This is a free html Bootstrap Knowledge Base theme, it can be customised to fit wordpress and other CMS systems. If you need help converting the theme, get in touch with me.
You can use this theme however you like. It is licensed under the MIT license.
Free Material Design Knowledge Base
For a newer design of knowledge base made using Material design, see this repository: https://github.com/sunnyg1210/material-knowledge-base
Free Material design Angular 4 Admin theme
If you like this and are building a web application, checkout https://github.com/sunnyg1210/adminbsbmaterial-ANGULAR - this is another theme that customised for Angular 4 and is ready to go for admin style web apps :). More free stuff will be coming soon so keep an eye out ;)
Licensed under MIT License