The Voronoi diagram—an organic, cell-like structure found in nature (such as dragonfly wings, giraffe patterns, or soap bubbles)—is a popular design element in architecture and 3D modeling. While SketchUp does not have a native Voronoi generator, several free plugins (extensions) can bridge this gap.
Created by Chris Fullmer (CLF) and later adapted by others, CLS Voronoi was a breakthrough. It generates 2D Voronoi patterns within any selected face (rectangle, circle, or irregular boundary). It also offers a "create holes" feature, which punches the cells through a surface—ideal for laser-cut screens. The script is available on GitHub as a .rb file. Installation requires manual placement into the SketchUp Plugins folder. While powerful, it has two major flaws: it does not work natively with SketchUp 2021+ due to changes in Ruby API, and it crashes on large point sets (over 300 seeds). For legacy versions, it remains a champion.
SketchUp’s plugin ecosystem is a double-edged sword. The official Extension Warehouse offers safety and compatibility, but many advanced tools—especially for mesh manipulation and Voronoi generation—are locked behind paywalls (e.g., Artisan, SubD, or Fredo6’s suite, which, while partly free, requires donations for full access). Consequently, "free Voronoi SketchUp plugin" searches often lead to dead links, abandoned GitHub repositories, or extensions that only work with SketchUp 2017 and earlier. voronoi sketchup plugin free download
Since most free plugins are not listed in the default SketchUp Extension Warehouse, you will need to follow these steps:
To get the most out of the Voronoi plugin, try experimenting with different settings and techniques, such as: It generates 2D Voronoi patterns within any selected
For a SketchUp user, adding Voronoi capabilities means transforming a simple extruded box into a futuristic screen wall, a lamp shade that casts dappled shadows, or a landscape pavilion that mimics leaf venation. Without a plugin, one would have to manually draw dozens or hundreds of irregular polygons—a task measured in days of tedious work. A free plugin reduces that to seconds.
: A versatile alternative that can generate both Voronoi geometry and convex hull shapes from point clouds. organic cutouts within the generated cells
There are a few plugins available that can help you create Voronoi diagrams in SketchUp. Here are a few options:
: Often used in tandem with VoronoiXY, this plugin allows you to create rounded, organic cutouts within the generated cells, perfect for architectural facades.
After extensive testing across SketchUp 2018 through 2024, three free solutions stand out. Each has different strengths and limitations.