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.
After you have created your order form.
You can add a Preview Before Submit widget to your form that will serve as your cart.
Below is a sample Form:
I hope this helps. Feel fee to contact us anytime if you have other questions regarding this. Thank you.