I’ve done this using ‘chm2web Pro v.2.7(beta 172)’ application that can be found at the following address: http://chm2web.aklabs.com/
The JUCE HTML help can be easily viewed on any platform (Linux, Mac OS X, Windows) that can run a modern web browser.
You can download the JUCE 1.41 HTML help from the following address:
http://arlen.pisem.net/juce-1.41-help.7z (1.4 Mb in size)
It’s compressed using 7-zip file archiver that can be obtained here:
(7-zip uses the most advanced compression algorithm today, it’s free and supports multiple platforms)