Voxel Builder Alternatives
Voxel Builder is described as 'lets you easily create and edit 3D voxel graphics right in your browser. Simply select a colored block and click to draw'. There are more than 10 alternatives to Voxel Builder for a variety of platforms, including Windows, Mac, Linux, the Web and Steam. The best alternative is 3D-Coat. It's not free, so if you're looking for a free alternative, you could try MagicaVoxel or Goxel. Other great apps like Voxel Builder are VoxelShop (Free, Open Source), Pixel Studio (Paid), Cubik Studio (Paid) and Project Vox (Free).