Blender DemBones - mesh animations to bone animations in one click
Blender DemBones is an add-on that integrates the open-source project DemBones. It is an automated algorithm that converts mesh animations to bone animations, which can be used for various tasks, including skinning or improving the skinning of rigged models, baking deformation cages, and corrective smooth modifiers. The add-on is fully integrated with DemBones and features such as demLock and partial solving through vertex color. There are six main use cases for the add-on, including converting mesh sequences to bone animations and weights, and partially solving skinning through per-vertex color of the mesh.
You can get the add-on here ($15):
Blendermarket: blendermarket.com/products/blender-dembones