Brightness Sync
brightness-sync · v2.3.2
Utility to synchronise the brightness of LG UltraFine display(s)
brew install --cask brightness-sync Trust Score 6/10
Review
Mar 11, 2026Brightness Sync is a utility designed to synchronize the brightness levels of LG UltraFine displays with the built-in display of a Mac. It automatically adjusts the external monitor's brightness to match the Mac's display, making it ideal for users with multiple monitors, especially LG UltraFine models.
Synchronizes brightness between LG UltraFine displays and the Mac's built-in display.
Maturity: The project is somewhat mature but hasn't seen updates in over a year, though issues have been addressed.
Community: There is moderate community interest, particularly on Reddit, with some positive feedback and discussions about brightness syncing solutions.
Pros
- + Specific support for LG UltraFine displays
- + Automatic brightness synchronization
- + Open-source with MIT license
Cons
- - No auto-update feature
- - Limited community engagement
- - Niche use case