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.
Click on Preferences button.
On General Settings, set Responsive Form option to Yes
You can also use our new Form Designer tool if you want to add more styles to the form, and make your form responsive from there.
While on Edit mode, click the Form Designer Icon on the Form Style toolbar. (Pictured below)
On Form Layout click on Make This Form Responsive
Otherwise, by setting the option in Preferences will be enough.