I would say that it's not much better out of the box but you can combine forms, formsets, custom validation, 3rd party helpers like django-cripsy-forms and supp

I would say that it's not much better out of the box but you can combine forms, formsets, custom validation, 3rd party helpers like django-cripsy-forms and support with something like KnockoutJS in the browser and voila :) It would be great if there was a ready-made add-on combining all these areas but I don't know any personally. I also suspect think that writing such a generic helper might not be a great idea as everyone needs something a bit different, so using the mentioned lower level components and combining them on your own could be the best way to go here.