SketchUp, marketed officially as Trimble SketchUp, is a 3D modeling program for a broad range of applications such as architectural, civil, mechanical, film as well as video game design — and available as Sketchup Make, a free version, and Sketchup Pro, a paid version.
The company ownership has transitioned through an initial independent stage (2000-2006), a second phase under Google ownership (2006-2012), to its current ownership under Trimble Navigation, a mapping, surveying, and navigation equipment company.
The program emphasizes ease of use, and an online repository of model assemblies (e.g., windows, doors, automobiles, entourage, etc.) known as 3D Warehouse enables designers to locate, download, use and contribute free models. The program includes a drawing layout functionality; allows surface rendering in variable "styles"; accommodates third-party "plug-in" programs (hosted on a site called Extension Warehouse) enabling other capabilities (e.g., near photo realistic rendering); and enables placement of its models within Google Earth.