Hi! My first post here. I am Spanish. My English is not good. Sorry!
I only wanted to bring your attention upon the campaign of crowfunding for a completely free tool (according to authors): Basis.
What is Basis?
"Basis is a 2d animation program for skeletal, sprite, and game level creation. Its efficient design promotes swift, high quality work."
I invite you to that you take a look at this.. This is the link.
It seems VERY interesting. I do not know no other free comparable/similar tool. Am I wrong? Perhaps Synfig Studio. On the other hand Spine (apparenty a very similar tool) is a commercial competitor. I was considering use Blenderfor 2D Sprite Animation... :-|
What opinion do you have about this?