Instance Replacer is an add-on that swaps selected objects with a linked instance of the active object. It is designed for modular workflows, asset layout, and environment design, allowing users to convert placeholder objects into final assets while retaining their original position, rotation, and scale.

Advanced controls allow users to apply randomized scaling across individual axes, choose whether to inherit the source material or retain the original, and keep replaced objects in their original collections. The tool also includes a preview mode for testing replacements before applying them and an auto-rename function for organizing the newly created instances.