Which program I can use to make 2d skeletal animations for my UE4 project?(preferably free product)

You are very welcome! At this time, no. We have no way to animated skeletons in side Paper2D/UE4. You would have to animate that inside your 2D animator and export the sprites and make them into flipbooks. If this has been helpful, please upvote and mark as answered. Good luck!

2d Skeletal animation

Development Pipeline & Plugins Plugins

kestrelm (kestrelm) July 12, 2016, 5:21am 5

Hello,

You can try out my tool Creature:
http://creature.kestrelmoon.com/

Has full Blueprint Support for UE4:

UE4 Runtimes are here:

Cheers