CrackMacCan you still use a MacBook with a cracked screen? Is it safe?
Yes. A cracked MacBook screen is safe to keep using as long as you treat it with some care. There's no risk of a shock: the display runs on low voltage, and the battery sits in the base, not the lid. The real risks are tiny glass splinters, the crack spreading, and dust or liquid getting into the panel. How usable the Mac stays depends on whether the picture itself is damaged.
Is a cracked laptop screen dangerous?
- Electric shock: no. MacBook displays are lit by LEDs running on low voltage. Old laptops with fluorescent backlights had a high-voltage part in the lid, but MacBooks dropped those more than fifteen years ago.
- Glass splinters: the real hazard. Don't run a finger along the crack, and don't press on it. Wipe the screen gently with a dry microfibre cloth.
- Liquid crystal: it's sealed between two layers of glass, and leaks from a laptop screen are rare. If you ever see a wet-looking patch, don't touch it, and wash your hands with soap if you did.
- Mercury: none. LED-lit screens have no mercury lamps.
- The battery: it's in the base, so a cracked screen doesn't affect it. If the same knock bent the case, or the trackpad starts to bulge, stop using the Mac and get it checked.
How usable it stays
| What you see | Can you keep using it? |
|---|---|
| A crack in the glass, picture normal | Yes, normally. Just handle it with care. |
| Lines or a black strip along one edge | Yes. Block off the damaged part and work on the rest. Here's how. |
| A black patch in the middle, or one that keeps growing | Only with an external monitor, or until you repair it. |
| The whole screen black | Yes, with an external monitor or TV. How to connect one without a picture. |
Keep the crack from getting worse
- Open and close the lid slowly, from the middle of the top edge.
- Carry the Mac in a padded sleeve, with nothing pressing on the lid.
- Check the keyboard is clear before you close it.
- If small pieces are coming loose, a strip of clear tape over the crack only holds them in place.
- Back up now. A knock hard enough to crack the screen can damage other parts too.
Why cracks spread, and how fast: will a cracked MacBook screen get worse.
Does a cracked screen harm the rest of the Mac?
Usually not. The display is a separate part, and the Mac underneath keeps working. Do check the hinge, the ports and the case for damage from the same knock. If the Mac starts behaving oddly, such as shutting down or not charging, that's a sign something else was hit as well.
Using it while you decide
Plenty of people keep using a cracked MacBook for months. A repair on Apple silicon models replaces the whole lid, so a small crack costs as much as a big one, and there's no penalty for waiting while the picture is fine. What a repair costs, and whether to fix or sell.
If the damage runs along one edge, CrackMac can keep windows, menus and the pointer off it. There's a free 30-minute trial.
Quick answers
Is it safe to use a MacBook with a cracked screen?
Yes, with some care. There's no shock risk, because the display runs on low voltage and the battery is in the base. Avoid touching the crack, since the glass can shed tiny splinters, and protect the Mac from pressure and liquid so the crack doesn't spread.
Can a cracked laptop screen give you an electric shock?
Not a MacBook. Its display is lit by LEDs running on low voltage from the logic board. Older laptops with fluorescent backlights had a high-voltage inverter in the lid, but MacBooks haven't used those for more than fifteen years.
Will using a MacBook with a cracked screen make it worse?
Using it doesn't, but opening the lid by a corner, pressure in a bag, and heat and cold do. Open the lid from the middle, carry the Mac in a padded sleeve, and keep the keyboard clear before closing it.
Cracked, with a dead strip along one edge?
Then the Mac is still very usable. CrackMac paints the dead strip black and keeps windows, the menu bar and the pointer on the part that works, so the damage stops getting in your way.
- 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.