ezyFAQ is a very powerful yet affordable solution to setup a FAQ/knowledge base without all the complexities (and cost) of Zendesk and other solutions. Studies have shown that most customers would much prefer to quickly find the solution themselves
openKB is an open source Markdown based Knowledge base application (FAQ) built with Nodejs and ExpressJS. The application uses an embedded database (nedb) for easy installation without a full Database server.
The application is designed to be easy to use