Alternatives to Monitorian
Control the brightness of multiple monitors from Windows. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
Monitorian
Control the brightness of multiple monitors from Windows.
Replacements
Listings that take over the same core job as Monitorian.
Twinkle Tray
Adds brightness sliders for external monitors to the Windows system tray, using DDC/CI, which Windows does not support natively.
Twinkle Tray is free and MIT licensed, adding automatic brightness by time of day or idle, hotkeys and backlight normalisation, but requires DDC/CI capable monitors.
MonitorControl
Adjust Mac display brightness and volume from the keyboard or menu bar.
MonitorControl adjusts display brightness and volume from the keyboard or menu bar on macOS only, combining hardware brightness with software dimming.
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.
DisplayProfileManager
Saves and switches Windows display profiles covering resolution, HDR and layout.
Auto Dark Mode
Switch Windows between light and dark themes automatically.
MultiMonitorTool
Portable NirSoft utility for enabling, disabling and configuring multiple monitors.
Dual Monitor Tools
Suite of Windows utilities for working with several monitors.