3×3 RGB Color Matrix Editor

Preview Scale (double-click a slider to reset)

Editing happens on a scaled preview for speed. The download always uses the full-resolution image.

Global Saturation

0 = grayscale, 1 = unchanged, >1 = oversaturated.

Matrix — rows = output R, G, B (double-click to reset) Reset All

Keep white white

When enabled, each matrix row is normalized so its sum is 1, mapping white (255,255,255) to white.