Saving is your choice
The calculator works in memory until you select Save on this device. That action stores your container measurements, optional labels and bag settings in this browser’s local storage. No calculator inputs are sent to a server.
One browser, one saved plan
The plan does not sync to your phone, another browser or another web address. Clearing browser data can remove it. Shared-device users of this browser may be able to see it, so avoid sensitive information in labels.
Errors stay visible
If the browser blocks saving, the tool reports that it did not save. It does not automatically overwrite damaged data or a saved plan from an unsupported version. Delete saved copy explicitly when you want to replace that record. You can print a plan instead.
No trackers or affiliate links
This tool makes no analytics, spreadsheet or model API requests. Source links take you to external websites with their own practices. Browser printing is controlled by your browser and device.
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