This tool can turn your meshes in to pixels and voxels.

You can use that to quickly turn your 3D objects into fully pixelated artworks.
It's pixel perfect, highly customizable, easy to use and you can also instantiate your own geometry on the generated voxels to achieve interesting results.

To use that you just need to Append the "Pixelator.blend" file to your scene, selecting the "Pixelator" inside "NodeTree" folder.

Select a mesh and add a Geometry Node modifier to it and load the Pixelator here.

Place the name of the UV of your mesh on the "UV Name" and play with the other settings

You can watch this video to learn how to use it