PNG images can be up to 4096 × 4096 pixels.
Open a clean white screen in fullscreen for monitor checks, dead pixel inspection, lighting, tracing, or a bright background. Choose any color and download a PNG.
A white screen makes dark or stuck pixels, dust, uneven brightness, and color tint easier to notice. It can also provide soft light for a video call or illuminate a small workspace.
Choose a preset or custom color before opening the preview in fullscreen. Press Esc to leave fullscreen, then adjust the color and open it again.
For a better display check, view several colors in a dim room and keep the browser zoom at its normal level. The tool displays solid browser colors; it does not calibrate the monitor or repair pixels.