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.
Are you asking what is the maximum file size you can upload in the File Upload tool? It depends, because you can actually configure the file upload limit.
JotForm is limited to 1GB per submission. Even if you have multiple upload fields, per submission, the total should be 1GB.
Please refer to this detailed guide: Changing-the-Upload-Size-Limit
If you have any questions, let us know. Thank you.