Blender is a free and open-source 3D computer graphics software toolset used for creating animated films, visual effects, art, 3D printed models, motion graphics, interactive 3D applications, virtual reality, and computer games.
Blender is one of the most professional free animation creation software available for free. you can literally create anything you can imagine using this software although you will need to take a few courses before using it.
Free blender courses: https://www.udemy.com/topic/blender/free/
Click on the button below to download the software for free