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.
Yes, all you need to do is to go to the edit mode of your form after logging into your JotForm account at www.jotform.com, then simply:
1) Go to MY FORMS.
2) Select your form, and click on Edit form.
3) Select the field you want to required and enable the Required button:
If you need anything else, please open a new thread, we will be glad to assist you.