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.
If you meant the upload space you have accumulated on your account submission data, you can decrease/clear them by deleting submissions that have upload submissions on them.
You can go to the form submission page http://www.jotform.com/help/269-How-to-view-Submissions
and delete the submissions that have uploads.
Please take Note: Deleted submissions are permanently gone. So, make sure to have a backup copy of the submission before deleting them.
Let us know if you need further assistance.