What programs are there to create a website prototype?

Question

Web development

I am slowly thinking over the site, I need a program so as not to lose the idea and write it down in the form of a diagram, without registration

Answer 1

i can suggest moqups to create interface and transitions.
perhaps you meant it

Answer 2

I write down all the ideas in google keep (in the form of a list) on the phone, for the prototype the best is axure (if the trial version is enough, well, or look on the trackers)