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.
We have two methods that you can use.
Method 1: Using a plugin in Mozilla Firefox, here's a guide on that: http://www.jotform.com/help/315-Downloading-File-Uploads-in-the-form-using-DownThemAll-Mozilla-Firefox-Extension
Method 2: Using our File Downloader App here: http://apps.jotform.com/app/file_downloader. The guide or instruction is seen in the apps page.
I hope that helps.