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.
The data is being sent to our database and storage when you use online http://jotform.com JotForm version, and unfortunately, there is no way to change that behavior. However, as explained here, the forms can be integrated with different online cloud storage services, and also there is an FTP integration option (it sends form uploads, and submissions as PDFs to the remove FTP):
On the other hand, you can host a basic JotForm builder yourself. In this case, the data will be stored on your servers.