NitTray is a free, open-source Windows app for adjusting the brightness of Apple's Studio Display and Pro Display XDR without a Mac.
- Apple Studio Display (1st & 2nd generation)
- Apple Studio Display XDR
- Apple Pro Display XDR
Connect the display to your PC with a USB-C or Thunderbolt cable.
Download the latest release:
| Architecture | Download |
|---|---|
| x64 — for most Windows PCs |  |
| Arm64 — for Windows on ARM (Snapdragon X, Surface Pro X, and similar) |
 |
Note
NitTray is code-signed. However, because it is a new application and has not yet established a Microsoft SmartScreen reputation, Windows may display a "Windows protected your PC" message the first time you launch it. Select More info, then Run anyway.
The src/app/README.md explains NitTray's USB/HID communication, display detection process, and how to build the application from source.
NitTray is licensed under the terms described in LICENSE.
For Pro Display XDR driver setup, NitTray includes libwdi, which is licensed under LGPLv3/GPLv3. Additional bundled components and their licenses are listed in THIRD-PARTY-NOTICES.md.
NitTray is free and developed in my spare time. If you find it useful, please consider supporting its continued development:
Apple, Studio Display, Pro Display XDR, Mac, and macOS are trademarks of Apple Inc. NitTray is an independent, unofficial project and is not affiliated with, endorsed by, or sponsored by Apple Inc. Product names are used only to describe the hardware NitTray works with.