FreeCAD - An open-source parametric 3D modeler
MATLAB - A high-level language and interactive environment for numerical computation, visualization, and programming
SketchUp - 3D for Everyone
Autodesk Fusion 360 - Integrated CAD, CAM, and CAE featuring collaborative editing and cloud-based computation.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Wolfram Mathematica - Mathematica has characterized the cutting edge in specialized processingโand gave the chief calculation environment to a large number of pioneers, instructors, understudies, and others around the globe.