SketchUp’s native tools aren’t built for dense polygon meshes — a Revit export can land at 2M+ faces, and CAD imports or photogrammetry scans bloat file size and slow LayOut. Decimify reduces polygon count in place, right inside SketchUp, with no round-trip through another app. Free for basic use; sign in with a 3dshouse account for Pro.
Video
Features
- In-place reduction – select a Group or Component, drag the slider, and replace its geometry where it sits.
- Live preview – an embedded 3D viewport updates as you scrub; the whole LOD range is computed once.
- Groups & components preserved – multi-level hierarchies survive; reused instances stay linked.
- Materials & UVs intact – per-face texture projection and multi-material runs are kept, no flattening.
- Soft / smooth edges – edge shading flags are captured and re-applied so surfaces don’t flatten.
- Scene position kept – transforms and insertion points stay put; commits are single-undo.
- Import GLB / STL – load a file directly, simplify, and commit it as a new Component.
Install
- In SketchUp: Extensions → Extension Manager → Install Extension and pick the
decimify.rbz. - Restart SketchUp. A Decimify panel appears under the Extensions menu.
- Sign in with your 3dshouse account in the panel to unlock Decimify SketchUp Pro.
Requirements
- SketchUp 2022 or newer.
- Windows or macOS.
- Internet connection – the plugin UI is served online so you always run the current version.
FAQ
What is free, and what needs Pro?
The basic reducer is free. Full-resolution output and the complete feature set unlock with Pro – sign in with your 3dshouse account, no license key to copy.
Does it preserve materials and edges?
Yes – UV projection, multi-material runs, and soft/smooth edge flags all survive the reduction.
Is there an online version?
Yes – the Decimify web app runs the same engine in your browser for GLB/STL/USDZ files.