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.
Can you please be more precise? Are you trying to edit your form inside of Form Builder? I have tested one of my form and I was able to save changes I made.
You can also try to use different browser.
Hope this will help. Let us know if you need further assistance.