Grid
5 × 5
8 × 8
10 × 10
16 × 16
Custom…
Regen
▾
Seed symmetry
No symmetry (random fill)
Horizontal mirror
Vertical mirror
Diagonal mirror
Swirl mirror (flip mirrored half)
Color-invert mirror
Clear
Invert
Export PNG
Click toggles a cell · drag extends that stroke · Arrow keys move · Space toggles