Minecraft 2D Map Designer (X/Z)

Center world X=0, Z=0. Y is the layer slider.
Y
Clipboard stored in localStorage. Paste places at cursor.
Shortcuts: C Copy, X Cut, V Paste, Space drag, +/- zoom, Arrow keys move cursor.
Layer Y:
64
Cursor:
X:0 Z:0
Pan with Space + drag or Middle mouse. Click to paint. Right-click erase.