What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
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.
You can limit the number of selections on a Check Box field by clicking on its gear-shaped icon, Edit Preferences, and setting Maximum Selections to 1.
Please take a look at the following images for visual guidance:
This will result in an error if they try to select more than one answer:
Please let us know if you need further assistance, and we will be glad to help.