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.
You can integrate your form with one of the Storage apps, so that the uploaded files are sent there:
Then you can add the app Auto Delete Submissions, that immediately deletes submissions as soon as they arrive:
This app should be used with care, as once a submission is deleted it is not possible to recover it, as we do not save any copy of them.
You can also manually free up space, by deleting the submission:
Some important notes on your question:
Please see the upload space of each plan. Free accounts can only have 100MB:
Another situation is that regardless of the selected plan, the maximum file size uploaded is 1GB.
Let us know if we can assist you further.