Can JMARS be accessed from the web without installing it?

We have considered this, and understand how a web tool would improve accessibility.  Unfortunately, after 25+ years of development, the code base for JMARS is very large and complex, and the ease of porting it to a new interface would be costly and time consuming.  There are currently a number of ongoing NASA missions using the existing code, which requires that we continue to support it on the platforms it is on at the moment.