And my understanding was that localStorage didn't actually have any specific permanence guarantees; how do I know I won't spend a bunch of time putting in some information, only to have it disappear behind my back if I don't touch it in a few months?
Sorry, in a few days I will add an export and import function. And will build electron app later, as it will be more convenient than export/import. Yes, Structpad isn't well polished now. But I posted it anyway, as the purpose of the post was to find out people's interest. Much work expected :)