MagicaVoxel - A free lightweight GPU-based voxel art editor and interactive path tracing renderer.
CADMAPPER - Instant CAD files for any location on earth
Goxel - Goxel is a simple, but powerful voxel graphic editor with 24-bit color support, unlimited scene...
DWGFREE - DWGFREE is an online platform that comes with a comprehensive collection of CAD blocks that can be downloaded without the need for registration.
Cubik Studio - Model in a unique cubic style. Start modelization with boxes. Move, rotate and scale cuboids.
MAPACAD - MAPACAD is an online website that is providing leverage to designers and architectures to have the ability to download CAD map cities that can be directly used in their projects.