🪶 Under 1 MB — zero dependencies

Your keyboard.
Your monitor.

Control your external display's brightness and volume with the keys that should have worked all along. Free, open source, invisible.

⬇ Download for Mac View on GitHub
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Everything you need. Nothing you don't.

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Hardware Brightness

Controls your monitor's actual backlight via DDC — not a software overlay or gamma trick.

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Monitor Speakers

Adjusts your display's built-in speakers via DDC. Volume keys finally work for your monitor.

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Sync Mode

Keeps your MacBook screen and external display in lockstep. One keypress adjusts both.

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Invisible Mode

Hide from the menu bar and dock entirely. Completely out of sight, always listening.

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Featherweight

Under 1 MB, zero dependencies, negligible CPU/memory. Pure Swift + IOKit.

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Free & Open Source

MIT licensed. No telemetry, no accounts, no subscriptions. Read every line of code.

<1
megabyte

No Electron. No frameworks. Just your keyboard and your display.

Frequently Asked Questions

Does Glint work with my monitor? ▼
Most external monitors support DDC/CI. If your monitor has an OSD with brightness/volume controls, it almost certainly supports DDC. Works over HDMI, DisplayPort, and USB-C/Thunderbolt. Some USB-C hubs may block DDC signals — try connecting directly if you have issues.
Why does Glint need Accessibility access? ▼
To intercept media key events before macOS processes them, Glint uses a CGEventTap, which requires Accessibility permission. Without it, Glint can't detect brightness/volume key presses. This is a standard macOS security requirement for any app that reads keyboard input.
Is this safe? Why isn't it on the Mac App Store? ▼
Glint is open source (read every line!) and notarized by Apple (malware-scanned). DDC requires IOKit I2C access, which the App Store sandbox blocks. This is the same reason BetterDisplay, MonitorControl, and Lunar distribute outside the Store.
How do I get settings back after hiding the menu bar icon? ▼
Open Glint from your Applications folder (or Spotlight search for "Glint"). When the app detects it's being re-opened, it automatically shows the settings window.
Can I control multiple monitors? ▼
Yes! Glint detects all connected external displays and adjusts them simultaneously when you press brightness or volume keys.
What's the CPU/memory usage? ▼
Effectively zero when idle. Glint uses a CGEventTap which is interrupt-driven — no polling, no timers, no background threads. Memory footprint is under 15 MB.
Does it conflict with BetterDisplay / MonitorControl? ▼
Possibly — if two apps both intercept the same media keys, they may interfere. We recommend using one DDC controller at a time.