Are there pork free marshmallows

Not meat, but they contain Gelatin, an animal byproduct that is also present in meat.

As almost all commercially available marshmallows contain gelatin, they cannot be considered vegan. However, a few brands do not contain animal gelatin, and the original recipe (using the whipped sap of the "marsh mallow" mucilaginous plant), indeed, contained no animal byproducts.