5. What is Google Sketch-Up? Google Sketch-Up is a 3D modeling programme designed for architects, civil engineers, filmmakers, game developers. It has been designed to be easy to use. You could redecorate your classroom. Design a new piece of furniture. Model your city for Google Earth. Create a skate-park for your hometown, then export an animation and share it on YouTube. You can build models from scratch, or you can download what you need. People all over the world share what they've made on the Google 3D Warehouse. It's a huge, searchable library of models, and it's free.