Blender addons Easy Merge Bone
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Easy Merge Bone
Merge selected bones into one bone and automatically combine their vertex group weights, all in a single click.
Simplifying a rig usually means merging bones, and doing it by hand means deleting bones, re-parenting children, and cleaning up vertex groups afterwards. Easy Merge Bone does all of that for you.
How to use
Step 1: Select your armature and enter Edit Mode.
Step 2: Select the bones you want to merge (at least 2 bones from the same parent–child chain).
Step 3: Open the sidebar (N) > Easy M Bone tab and click Merge Bones.
Features
One-click merge – each selected bone chain collapses into its top bone, which keeps its original name.
Automatic weight merging – the vertex group weights of the merged bones are added together (clamped at 1.0) into the top bone’s group, and the leftover groups are removed.
Works on all bound meshes – every mesh parented to the armature or using an Armature modifier is updated.
Smart bone length – the merged bone is extended to reach the end of the chain.
Automatic re-parenting – child bones outside the selection are attached to the merged bone, and connections are kept where possible.
Multiple chains at once – select several separate chains and merge them all with one click.
Undo support – one undo step reverts the whole merge.
Clear feedback – a report shows how many bones were merged and how many vertices were re-weighted.
Requirements
Blender 5.2.0 or newer