Moving your save from one machine to another requires a few extra steps because folder structures differ. Here’s a universal method:
The exact location of your save file depends on how you are playing the game. Because Flash has officially reached its end-of-life, most players now access Jacksmith through modern emulators or standalone versions. jacksmith save file
These create a virtual file system. Check the emulator’s documentation, but often the save is a single .json or .dat file exportable via the right-click menu. Moving your save from one machine to another