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.
To add your form into your Facebook page, please review the following video.
I also suggest you review our users guide, Adding Form to Facebook Page. As this contains step by step instruction on how to accomplish your goal.
If you have any other question, please do not hesitate contacting us.