CrackMacCrackMac / Free tools / Black screen
Black screen: full-screen black for cleaning, testing and focus
Turn your whole screen pure black in one click. Use it to see dust while cleaning, to spot stuck pixels and light leaks, or to keep the screen dark without sleeping the Mac.
Move the mouse or press any key to show controls. Escape leaves. Arrow keys change colour.
Ways to use it
- Cleaning: dust and smudges show clearly on black.
- Stuck pixels: coloured dots on black are stuck pixels.
- Backlight bleed: in a dark room, look for glow at the edges.
- A dark screen on demand: during a film, a talk or a break, without sleeping the Mac.
For a full check, run the dead pixel test or the screen test, which also measures damaged edges.
Questions
How do I make my screen black?
Click Open black screen. Your whole screen turns black. Press Escape to leave.
Why use a black screen?
To see dust and smudges while cleaning, to find stuck pixels and light leaks, to keep a screen dark during a presentation or a film, or to rest your eyes without putting the Mac to sleep.
Does a black screen save power on a MacBook?
Hardly. MacBook screens are backlit, so black still uses the backlight. Lowering the brightness or closing the lid saves far more.
How do I check for backlight bleed?
In a dark room with brightness at maximum, look at a black screen. A glow at the edges is backlight bleed. The backlight bleed test has more screens for this.
Cracked or partly dead MacBook screen?
If part of your screen is damaged, CrackMac keeps windows, the menu bar and the pointer on the part that still works and paints the damage black. Free for 30 minutes.
- Works on macOS 13 or later, Apple silicon and Intel.
- Free for 30 minutes of use, then a one-time price. No subscription.
- A refund within 7 days, no questions asked.