What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
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.
I think you are trying to get the Full Source code from your form, you can do it with this guide :
You will be able to see all the code and script used by your form, you can add functionality if you want and you can also add your custom scripts.
Please, let us know if you need more help or have more questions, we will be glad to assist you.