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 just change your form width using the width variable in form builder. Check the screenshot.
Click it to enlarge it :)
Hope this helps
The form will also Center itself nicely in any browser window but it will stay the size set in there.
Do you want the form width to expand 100% of the page? Or are you referring to making it's width fit on your website? If so, let us know the website URL where you've embedded your form so we can check it here.
Guide on how to make width 100%,
1. Click Setup & Embed
3. Form Styles
4. Form Width, change to 100%