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.
If you want to change the width of any input fields, please click on that field, and use its Size option from the toolbar at the top to modify its width:
If you want to change the width of the entire form, you can do that by going to Preferences > Form Styles, and changing Form Width:
If you were looking for something else entirely, please describe it in a little more detail about which part of your form you'd like to modify in size, and we will be happy to help.