Use schematic capture, create PCB designs and view them in 3D, all forever free. The company no longer develops Sketchup Make, its free desktop software, but you can download it from Trimble's archives. Open source EDA / electronics CAD software for Windows, macOS and Linux. The SketchUp website offers a really impressive array of video and self-paced training options to help you along the way.

Of course, if you're looking to put out detailed designs with accurate sizing and tolerances, you'll need to spend some time learning the ins and outs of the program. Even if you've never done any CAD work or 3D modeling before, you can pull together some really nice presentations in minutes. Sk圜iv Structural 3D offers the very best in online structural analysis. It is completely online requiring no installation to use. The interface makes it easy to get up to speed on the basics. Sk圜iv Structural 3D is a cloud-based Structural Analysis software that allows users to model, analyze and design complex 3D structures. SketchUp's free web-based version has plenty of power, but if you need additional functionality, you have to buy SketchUp Pro-and pay a hefty price tag. Trimble has enhanced it and developed it further and now offers a slew of related products. In 2012, Google sold the product to Trimble.

SketchUp was originally developed by Google and was one of the greatest free CAD packages ever put on the market. Free feature is web-only with many important features hobbled.

Free design cad software