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.
For file uploads, please check the following guides:
For securing the form, you can enable SSL to your form:
But note that you have to consider your account limit because free accounts can only receive up to 10 SSL submission per month. If you need more than this, you will have to upgrade your account to our higher paid plan.
We'd like to let you know that we've now taken additional steps to help maintain upload security.
Find out more in our blog https://www.jotform.com/blog/259-Keeping-Your-Uploads-Secure .