Kaoru's Blender Tools is an add-on containing a collection of scripts aimed at optimizing models and managing mesh data. The primary component is an Atlas Generator that combines multiple materials into a single texture atlas. It supports PBR and custom texture inputs, handles Unity smoothness maps by inverting roughness, and converts normal maps between DirectX and OpenGL formats.

Beyond atlasing, the add-on includes several utilities for shapekeys and UVs. The Toggle BlendShape Generator tool allows users to hide selected geometry by moving vertices to the nearest skinning bone, providing an alternative to object toggles for skinned meshes. Additional functions enable splitting shapekeys into separate meshes, batch renaming shapekeys using regular expressions, and renaming all UV channels to a standard convention to facilitate mesh joining.