Import Mixamo - Root Motion is a Blender add-on for batch importing FBX animation files downloaded from Mixamo and applying root motion. Files are imported through File > Import > Mixamo Fbx, where multiple FBX files can be selected at once and configured in a side panel before import.
During import the add-on removes the "mixamorig:" prefix, renames animations by file name, applies transformations while fixing animation strength, and removes redundant skeletons and objects matching the "Armature.00*" rule. It creates a root bone to record Root Motion information and bakes the character's displacement onto it, offering several ways to calculate the baked keyframes. Additional options include replacing "Left/Right" with ".L/.R" suffixes and a panel for customizing bone names.
Version 1.0.4 added a Rotation option: a Copy Rotation constraint that has the root bone copy the hips bone's Z-axis rotation in world space, along with disabling the hips bone's inherit rotation. The add-on is compatible with Blender 4.2 LTS and released under the GNU General Public License v3.0 or later.