It isn't perfect.
Instead of stressing over file conversion, the modern emulation community has built powerful environments that allow you to run both formats flawlessly on contemporary hardware. 1. For Running JAR Files (Java ME/J2ME)
If your goal is simply to run a specific application, consider:
If you truly need to “convert” a SIS app to run on a modern platform, the realistic pipeline is:
SIS File Extension - What is .sis and how to open? - ReviverSoft
Several niche tools were developed for this purpose, though they are now mostly found on archive sites:
Sis 2 Jar Converter
It isn't perfect.
Instead of stressing over file conversion, the modern emulation community has built powerful environments that allow you to run both formats flawlessly on contemporary hardware. 1. For Running JAR Files (Java ME/J2ME)
If your goal is simply to run a specific application, consider:
If you truly need to “convert” a SIS app to run on a modern platform, the realistic pipeline is:
SIS File Extension - What is .sis and how to open? - ReviverSoft
Several niche tools were developed for this purpose, though they are now mostly found on archive sites:
