Alternatives to Twinkle Tray
Adds brightness sliders for external monitors to the Windows system tray, using DDC/CI, which Windows does not support natively. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
Twinkle Tray
Adds brightness sliders for external monitors to the Windows system tray, using DDC/CI, which Windows does not support natively.
Replacements
Listings that take over the same core job as Twinkle Tray.
Monitorian
Control the brightness of multiple monitors from Windows.
Monitorian also controls brightness of multiple monitors from Windows with per-monitor and synchronized adjustment, but it is freemium rather than fully free, and hardware controls depend on monitor support.
Also worth comparing
These listings name Twinkle Tray as their own alternative, so the relationship runs both ways.
MonitorControl
Adjust Mac display brightness and volume from the keyboard or menu bar.
Twinkle Tray offers DDC/CI brightness sliders for external monitors on Windows only, adding automatic brightness by time of day, but no volume control.
Similar software
Related functionality, not a direct replacement.
f.lux
Warms your display's colour temperature after sunset to cut blue light in the evening, on a schedule based on your location.
Auto Dark Mode
Switch Windows between light and dark themes automatically.
DisplayFusion
Multi-monitor management for Windows: a taskbar on every screen, wallpaper spanning, title bar buttons and hotkeys for moving windows.
