Heavens no. Jello is primarily made of gelatin which is made by boiling the skins, bones, tendons, and ligaments of animals, so no, Jello is not vegan. But there are brands that make vegan Jello and vegan Cool Whip, so where there is a will there is a way. Just prepare the vegan Jello according to the package instructions and mix it with the whipped topping and mandarin oranges.