Easy Blend Normals – Free Blender Addon

Smoothly blend normals between two objects with one click. One-click setup: select two objects → blend. Seamless shading: hide seams and shading breaks. Non-destructive: Geometry Nodes based, fully editable. Smart linking: auto-detects active vs target object. Lightweight & fast: no dependencies, Blender 4.5+ ready.

You can download it from here: https://superhivemarket.com/products/easy-blend-normals