Mockup Baker is a paid plugin (approx. $5–$9 depending on bundles), but a free tier exists with limited templates and watermarked exports. Most teams go for the Pro version because of the commercial license and vector output support.
Load multiple objects at once, assign their high-poly counterparts via naming conventions (like _low and _high ), and bake them all in one click.
In simple terms, is a tool (most popularly available for Blender) that automates the "baking" process of 3D scenes into editable 2D assets.