CleanUp³ Reviews, pricing and alternatives 2026

CleanUp³ is a free SketchUp plugin that tidies up your 3D models: it merges coplanar faces, removes unused edges and geometry, deletes orphaned components, and purges unused materials. The result is a lighter file that's faster to work with and cleaner to export.

On interior-design models that balloon fast (imported furniture, 3D Warehouse components), it's the kind of tool that saves a ton of time and avoids sluggish files. It installs via SketchUp's Extension Warehouse and runs in a few clicks.

It's free (with an optional donation to the author), so there's no reason to skip it if you work in SketchUp regularly. One thing to watch: it modifies geometry, so keep a backup before a big cleanup. To check solid integrity afterward, Solid Inspector² is the natural companion.