Cómo puedo descargar los formularios?

Si lo que quieres es descargar los datos (submissions) enviados a traves de tu formulario, favor sigue esta guia (en inglés)

https://www.jotform.com/help/374-How-to-export-all-of-your-data-at-once

https://www.jotform.com/help/73-How-to-Download-Form-Submissions-as-Excel-CSV-PDF

But if you need to download the form itself, you can get the source code:

here

Here is a guide that explains that in details:

https://www.jotform.com/help/104-How-to-get-the-Full-Source-Code-of-your-Form