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.
You can delete the submissions from the submissions view.
You can delete individual submission by clicking on X mark on each submission. If you want to delete multiple submissions, you can hold Ctrl key on the keyboard and select multiple submissions. By clicking the button Delete all Submissions would delete all the submissions. Please be noted that once the submissions cannot be recovered in anyway once they are deleted from JotForm. You'll need to make sure that you have a backup of submissions. You may integrate Google drive, Dropbox, Google Spreadsheet, etc apps as a backup.
Hope this information helps!