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 create a lot of things using JotForm. However, we need more details about your inquiry regarding "Step by step form". Can you please give us more information so that we can assist you properly.
This might no be what you referring to but you can actually create multi-page form using the "Page Break" tool. This will give the form the ability to separate pages with a "back" and "next" button. I created a demo form: http://www.jotformpro.com/form/51733640993966, please do check it.