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Is it possible to save checkbox selections without creating accounts?

Is it possible to have a checklist such as this - http://checklist-with-progress.webflow.io/ and add code so the answers are stored on user’s computer/cache/whatever that is, so they can come back and continue as they go through the checklist? I feel that having to create an account would be overkill for users and I would like to see if that can be avoided. Thank you for reading and responses!

I’m interested in this feature too? Any idea?