MagicaVoxel - A free lightweight GPU-based voxel art editor and interactive path tracing renderer.
Cubik Studio - Model in a unique cubic style. Start modelization with boxes. Move, rotate and scale cuboids.
SpriteStack - 3D pixelart editor based on sprite stacking technique.
Marmoset Hexels 2 - an exciting grid-based 2D painting tool that enables you to effortlessly create brilliant works of...
Slab6 - Slab6 is a voxel editor that Edits, VOX, KV6, and KVX files.
SpritePile - Create Sprite Stacks quickly and easily!