Saved work and backups
Saved calculations stay locally in this browser so the public app remains free and does not require sign-in. Download a portable backup whenever you want a safer copy or need to share your work.
Back up and share your saved work
PetroCalcHub stores your saved work in this browser. Browser data can sometimes be cleared or lost, and it does not automatically follow you to another device. Download a backup file to keep a safe copy. You can also share that same file with friends and colleagues so they can restore the work in PetroCalcHub.
One portable .petrocalc file contains all work you have explicitly saved in this browser. Put it in your normal documents or cloud-drive folder for safekeeping.
Choose a .petrocalc file, or drag one here. Nothing is changed until you review and confirm the restore.
Saved calculations
Local saved-work records are available without an account and stay on this device.