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.
A form ID is automatically generated by our system when you create a form.
If you open your form in Preview mode, you'll see the form URL, the last part of the form is the form's ID.
Same if you will open your "Publish" wizard, you'll see the direct link of your form there bearing the form ID:
Let us know if you need more information on this.