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.
Seems like something is affecting the script that calculates the height for your form, please try re-embedding it copying all the code provided by the wizard, if it does not help, please provide us the URL where you are embedding your form, we will take a look on it and will provide you with the changes needed to solve this issue.