CleanUp³ Review and verdict 2026

Free SketchUp plugin to clean a 3D model and keep files light.

Free.

Our take

Understanding CleanUp³.

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.

Practical uses

Clean up a heavy imported CAD model.
Optimize architecture or interior design files.
Lighten 3D libraries before production use.

Pros and cons

What CleanUp³ does especially well — and the limits to anticipate.

Pros

Free and open-source.
Very effective at lightening heavy models.
Simple installation and use.
Automates repetitive cleanup tasks.
Supported by the SketchUp community.

Cons

SketchUp plugin only (software dependency).
Cannot recover accidentally deleted geometry.
Minimalist interface, few advanced options.

CleanUp³: when it makes sense.

CleanUp³ is essential for anyone using SketchUp with imported or complex models; free and very effective.

Keep if

You work regularly with SketchUp.. You import external 3D models (CAD, furniture, etc.).

Challenge if

You use a different 3D software (not SketchUp).. You build all models from scratch and clean.

Our verdict on CleanUp³.

Why this verdict

Very good

CleanUp³ is fairly easy to replace with an alternative, a free tier to test before paying, clearly documented use cases.