Just Black

Just Black is a minimalist utility application designed to display a completely black screen with zero distractions. With no navigation bars, no ads, and no complex menus, it runs instantly in absolute fullscreen mode.

Why use Just Black?
• Pixel Testing Tool: Perfect for checking your device's display panel to easily detect stuck pixels, screen bleeding, or backlight uniformity issues.
• Screen Dimmer & Light Blocker: Turn your device's screen entirely dark without turning off the display—ideal for reducing eye strain in dark environments or blocking ambient light.
• Clean & Secure: An ultra-clean interface that fully respects your privacy, requiring absolutely zero permissions and collecting no data whatsoever.