LDraw - LDraw is an open standard for LEGO CAD programs that allow the user to create virtual LEGO models...
Cadbull - Cadbull is a website that comes with an advanced collection of CAD blocks and DWG design, facilitating architects and designers to get done with their projects efficiently.
LeoCAD - LeoCAD is a CAD program for creating virtual LEGO models.
DWGFREE - DWGFREE is an online platform that comes with a comprehensive collection of CAD blocks that can be downloaded without the need for registration.
Stud.io - Build LEGO designs online with friends.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.