What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
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.
I would like to inform you that you will not lose submission data if you add new fields to your form. However, if you would like to make modifications to a form without editing the original, then I would suggest you clone the original form instead.
By cloning the form, you will be able to have the original form as is, and you can simply add the questions into the newly cloned version of the form. You can follow this guide on How to clone an existing form from your account.
If you need further assistance with cloning, feel free to let us know.