Inkscape is a free vector drawing program.
GIMP is a free vector drawing program.
Blender is a 3D program that can be used in a variety of ways, including for creating animations or making video games, and it works well with game engines such as, for example, Unity
Tinkercad is a 3D CAD program from Autodesk that is easy to use and suitable for designing small simple parts for 3D printing.
Fusion 360 is a powerful 3D CAD, CAM and CAE application. The program is suitable for click construction and is particularly suitable for so-called parametric.
Slicer for Fusion is an interesting program for converting 3D files so that they can be sliced or cut in various ways.
Pixologic's Sculptris is a relatively simple program to use and is used in Fab Lab workshops to sculpt simple characters or objects similar to modeling clay.
MakeHuman is an open and free program for designing and modeling human beings in a simple way.
It is possible to use all kinds of 3D programs in the Fab Lab workshops, but here is a list of other programs that are, however, not easily accessible to users.
Sketchup is a 3D program from Trimble and is relatively easy to use and is suitable for making 3D sketches of objects, buildings or areas or other things to be designed.