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.
It is not possible to add a cart on the form as this feature is not supported by jotform. However, you can still setup a payment field in your form. Simply follow this guide to set it up: Setting Up Your First Order Form. If you want to create a full-fledged online store with a cart, you may take a look at the Prestashop or Shopify websites which should fit in your requirement.
If you need further assistance, please let us know.