That's right. It is a CAD program that uses blocks similar to the popular toy brand as the illustration base.
The project editor that you will use for designing is very complete and stands out above all because it offers up to 10 different views.
BlockCAD also allows you to rotate your projects to your liking, so you don't miss any detail.
It has tons of pieces, which are grouped together in categories. There are vehicle parts and even pieces for Lego people.
You can save the designed in any of the following formats: JPG and BMP.