Download plugin sketchup. Download and install hundreds of third-party extensions to optimize your SketchUp workflow. Find out how to extrude, offset, bend, mirror, array, and more with these free extensions. Your library of custom third-party extensions created to optimize your SketchUp workflow. The Extension Warehouse is an online resource full of plug-ins developed especially for SketchUp. 2 days ago ยท SketchUp Plugin and Extension Store by SketchUcation provides free downloads of hundreds of SketchUp extensions and plugins Find and download various plugins for SketchUp, a 3D modeling software. Learn how to install and use these plugins to enhance your 3D modeling skills and speed up your workflow. . Find extensions for modeling, rendering, drawing, 3D printing, and more. These extensions enable you to add special tools and features to SketchUp. Download the plugins and watch tutorials for Sketchy FFD, Memory Copy, JHS Power Bar, Follow Me and Rotate, and more.