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.
You can change it via our Designer tool.
1. Go to "My Forms" page
2. Click to "Edit Form" you want to change font size of it
3. Click "Designer " tool
4. Click " Font Options" tool and Move the control ball to change font size. Please note that this changes font size of the whole form. If you need to change field by field with different font size, you need to inject a custom css code to your form.
If you need any further assistance from our side, please do not hesitate to contact with us.