JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
Yes it is possible to achieve your requirement and there are multiple options available:
#1. User can save the input data in session which is stored in our server. Please be noted that this feature requires two forms and the main form should have the "Page Break" field. The data is saved only on the click of the next button. The following guide should help you: http://www.jotform.com/help/97-How-to-Save-Forms-to-Continue-Later
#2. You can also take advantage of our "Auto Fill" feature as well which will save the input data every few seconds in browser cookie. That means if the user access the form again from other browser, other system or clear the browser cache, the saved data will not be accessible. The following guide should help you: http://www.jotform.com/help/227-How-to-Enable-Auto-Fill-Feature-Save-Form-Entries-to-Continue-Later
Hope this helps.
Do get back to us if you have any questions.