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.
Suppose you already have your form and you're on the Form Builder page.
You may also refer to this guide: Getting-the-Form-iFrame-Code
I hope this helps. Let us know if you need any further assistance. Thank you.