Roxel vs SpriteStack

Roxel is a free, open-source desktop voxel editor for hobbyists and indie creators, available for Windows and macOS. Its tools include brush, erase, recolor, eyedrop, select, move, and shape drawing. Rectangles, ellipses, and lines can be drawn on a build plane or extruded into 3D forms. An open-world grid allows painting across X/Z and upward as far as memory permits. Roxel includes built-in palettes, user palette management, and Adobe Swatch Exchange import and export. It opens MagicaVoxel .vox, Qubicle .qb, and Goxel .gox files, and exports .vox, .gox, .obj, .fbx, .glb, .png, and .svg. Projects use the .rox format; the maker says .glb exports are ready for Unity and Godot. Light, Dark, and System themes include customizable canvas and floor colors. The MIT license permits use, forks, and building on the project. Its itch.io page marks it in development and lists version 0.7.1 downloads. The maker says macOS builds are self-signed and not notarized, and Windows builds are unsigned.

SpriteStack has no write-up on Specifiction yet; its figures are above.