NitTray app icon

Control Apple Display Brightness on Windows

NitTray is a free, open-source system-tray app for adjusting the brightness of Apple Studio Display and Pro Display XDR monitors from a Windows PC.

Download for Windows (x64) Download for Windows (ARM64) View on GitHub
NitTray brightness slider in light theme on Windows NitTray brightness slider in dark theme on Windows

Screenshots: NitTray brightness slider in light and dark mode on Windows.

Why NitTray?

Apple Studio Display and Pro Display XDR do not include physical brightness controls. On macOS, brightness can be adjusted through System Settings, but Windows does not provide built-in controls for these displays.

NitTray adds a simple system-tray slider that communicates directly with the display over USB, allowing you to adjust brightness on Windows 10 and Windows 11.

Features

🔆 System-Tray Brightness Control

Quickly launch the app from the system tray in a compact window.

🖥️ Multiple Display Support

Automatically detects Apple displays and controls each independently.

🪶 Lightweight

Runs quietly in the system tray with minimal resource usage.

🔓 Free and Open Source

Licensed under the GNU General Public License v3.0.

Supported Displays

Connect your display directly to your PC using a USB-C or Thunderbolt cable that supports data transfer.

Frequently Asked Questions

Why does Windows show a “Windows protected your PC” message?

NitTray is code-signed, but because it is a new application, Microsoft Defender SmartScreen may display this message the first time you launch it. Select More info, then Run anyway.

Does NitTray support the Pro Display XDR?

Yes. During initial setup, NitTray installs a lightweight WinUSB helper that enables brightness control for the Pro Display XDR.

What type of USB cable do I need?

Connect your display directly to your PC using a data-capable USB-C or Thunderbolt cable that supports USB 3.1 Gen 2 / 10 Gbps or higher. Power-only cables, or cables without the required data support, may prevent NitTray from detecting the display.

Is NitTray free?

Yes. NitTray is free and open-source software licensed under the GNU General Public License v3.0.

Support

NitTray is free and developed in my spare time. If it has been helpful to you, any support is greatly appreciated and helps me continue improving the app.

☕ Buy me a coffee
Disclaimer. NitTray is provided “as is,” without warranties of any kind. Use of the software is at your own risk. To the fullest extent permitted by applicable law, the authors are not liable for any loss or damage arising from its use, including damage to hardware, software, or data.

NitTray is an independent open-source project and is not affiliated with, endorsed by, or sponsored by Apple Inc. Apple, Studio Display, Studio Display XDR, and Pro Display XDR are trademarks of Apple Inc.

NitTray is licensed under the GNU General Public License v3.0.