Scene Cleaner is an optimization tool designed to manage and reduce the size of Blender project files. It identifies and removes unused data, including empty geometry, unassigned materials, unused node groups, and orphan data. The tool targets common file-bloat issues by clearing out empty meshes, curves, text objects, animations, and worlds.

The add-on includes a smart merging feature to consolidate duplicate materials and textures. It also introduces a Smart Paste function that automatically merges duplicates when pasting objects between scenes or projects. Additional utilities allow users to collect all scene textures into a single directory and automatically clean up messy data hierarchies generated after importing formats like FBX, OBJ, and GLTF.