What's this?

A blender extension used for removing empty vertex groups and bones with no corresponding vertex groups.

Install(Blender 4.2+)

1. Download zip file from github release
2. Open Blender and drag zip file into it
3. Select a repository (e.g. User Default)
4. Toggle on Enable Add-on and click OK

Usage

Remove unused vertex groups

1. Select some mesh objects whose vertex groups will be checked.
2. Click Object - Clean Up - Remove Unused Vertex Groups
3. The empty vertex groups on the mesh objects should have been removed.

Remove unused bones

1. Select some mesh objects whose vertex groups will be checked.
2. Ctrl+Click select an armature object whose bone will be removed. (Make sure the armature is the active object)
3. Click Object - Clean Up - Remove Unused Bones
4. The bones on the armature object which are not referred by any vertex group in mesh objects should have been removed.