LibreCAD

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SketchUp

Tinkercad is a free, online 3D modeling and CAD program that runs in a web browser. Tinkercad is known for it ease of use and can be used for 3D design, electronics, coding projects and much more. The application is used by teachers, kids, hobbyists, and designers to imagine, design, and make anything come to life.

FreeCAD is a highly customizable, scriptable and extensible computer aided design software software for the, MacOS, Linux and Windows operating systems. With FreeCad you can model and design real-life objects in 3D through parametric modeling where all 3D objects you design are controlled by parameters. FreeCAD is released as free and open source software under LGPv2+ license, and can be used for commercial and hobby projects alike.

KiCad is a free and open-source, cross-platform software suite for electronic design automation. With KiCad it's easy to make professional PCB layouts with up to 32 copper layers. The schematic editor provided by KiCad allows you to create your own design without limits and then inspect and view your work in the 3D viewer through an interactive canvas.

Autodesk 3ds Max is a commercial-grade 3D modeling software used for modeling, animation and visualization of 3D objects. With 3ds Max you can create stunning environments, visualizations and objects for games, architecture, engineering and multi media that requires top-of-the-line 3D graphics. The software is developed and produced by Autodesk Inc, and was formerly known as 3D Studio and 3D Studio Max.

Shapr3D is the leading mobile 3D design and CAD application. The application can be used to model CAD files on-the-go with your iPad and Apple Pencil or stationary in front on your macOS-powered laptop or desktop.

Blender is a free and open-source 3D model software released under the GNU General Public License. The software can be used for 3D modeling, 3D animation, UV unwrapping, texturing, rigging, skinning, rendering, particle generation, water simulation and much more.