Real hardware brightness
It changes the monitor’s own backlight over DDC, the same signal its buttons send. No washed-out overlay, no lost contrast.
Your monitor, finally on your keyboard.
macOS can’t change the brightness of most external displays. MyMonitor can, from the menu bar and the brightness keys you already use.
Displays
Studio Monitor 27″
Living Room TV
Software dimming
Drag the first slider to dim this screen. The link icon moves both together.
Your brightness keys stop at the edge of your MacBook. The monitor next to it sits at full blast all evening.
The brightness controls macOS left out.
MyMonitor talks to your monitor the way its own buttons do, and quietly falls back to software when it can’t.
Your brightness keys
The keys you already press now move the display under your pointer. Your Mac’s own screen works as always.
Every display gets a slider
TVs and displays without DDC are dimmed in software instead, so nothing is left at full blast.
Dimmer than dim
Go below the monitor’s lowest setting for late nights in a dark room.
Linked or separate
Move every display together with one slider, or give each one its own level.
Nothing to sign up for
No account and no analytics. A small native app that lives in your menu bar.
Works over USB-C, Thunderbolt, DisplayPort and most HDMI.
Set up in a minute.
No account, no card, no password. The installer checks the download’s signature before anything runs.
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Copy the install line
curl -fsSL https://mymonitor.kartikkabadi.com/install.sh | bash - Open Terminal Press ⌘Space, type “Terminal”, and press Return.
- Paste and run it Press ⌘V, then Return. MyMonitor installs into your Applications folder and opens.
- Take the short tour Look for the display icon in your menu bar. The tour finds your displays and sets up the brightness keys. Your free day starts now.
Curious what it runs? Read the script. Stuck? Install help.
MyMonitor
$9once
For one Mac. No subscription.
- Hardware brightness for every external display
- Brightness keys and custom shortcuts
- Software and below-zero dimming
- Free updates
- No account, no tracking
Questions
Will it work with my monitor?
Most monitors connected over USB-C, Thunderbolt, or DisplayPort accept hardware brightness (DDC). Some HDMI ports, docks, and TVs don’t; MyMonitor dims those in software instead, so every display gets a slider. The 1-day trial is the easiest way to find out.
Does it work with Apple’s Studio Display or Pro Display XDR?
Those already work with macOS’s own brightness keys. MyMonitor is for everything else.
Why install from Terminal?
MyMonitor is an indie app that isn’t notarized by Apple, so a plain download would be blocked. The installer checks the download’s checksum and signature first. You can read the script.
Why does it ask for Accessibility?
Only for the brightness keys: macOS requires it to see those key presses. Skip it and everything else still works. More
What happens after the trial?
The sliders lock until you buy, and any software dimming is lifted so your screens are never stuck dark. Your settings stay put.
Does it collect any data?
No. No account, no analytics. The license check sends your key and a one-way hash of your Mac’s ID, nothing else. Privacy policy
Lost your key, or got a new Mac?
Get your key emailed again. One key works on one Mac at a time, and I’ll move it to your new one.