From version 3.9 Helpinator supports JavaHelp output format. JavaHelp is a native file format (html and xml files packed as JAR file) and a set of tools that allow you to use JavaHelp in desktop and web applications written using Java.
You can learn more about this format from it’s webpage:
To compile JavaHelp you will need the following prerequisites
1. Java SE Development Kit
2. JavaHelp SDK
Install both then update Helpinator options (Main Menu->Tools-Options)
Then you can compile JavaHelp with a single mouse click:
Compiled JavaHelp help file looks like this:
Note that JavaHelp has outdated HTML viewer so only a subset of modern HTML features is supported. Therefore it requires it’s own HTML templates, templates for CHM/WebHelp/QtHelp are not compatible with this format.
To allow you to view resulting JavaHelp file Helpinator also compiles several supplementary files from JavaHelp SDK into the target folder.