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.
Yes, for each plan type, File Storage is limited. For example, Free Accounts are limited to 100MB of File Storage. If you need more than this limit, you have to upgrade your account to our paid plans. Please check our pricing page for the comparison: http://www.jotform.com/pricing.
Note that you can also just delete a submission with a file upload to it to free up your file storage space. Just please make sure to download the submission and file first before deleting it from your account. Otherwise, there's no way you can recover it later.
As for the file size limit in the form, this guide will help you select the options:
Let us know if you have any further questions.