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Brightness Sync

Q: How do I uninstall Brightness Sync?

Open Terminal and run `brew uninstall --cask brightness-sync`. Homebrew will remove Brightness Sync and all associated files cleanly. You can verify it was removed by running `brew list`.

Q: How do I update Brightness Sync to the latest version?

Run `brew upgrade --cask brightness-sync` in Terminal to update to the latest version. You can also run `brew outdated` to check if an update is available.

Utility to synchronise the brightness of LG UltraFine display(s)

For Mac

Official website

Free

CategorySystem Utilities

PlatformmacOS

InstallationHomebrew

Version2.3.2Catalog version

PublishedJanuary 1, 2026•UpdatedAugust 10, 2026

What is Brightness Sync?

Utility to synchronise the brightness of LG UltraFine display(s)

Install with Homebrew

brew install --cask brightness-sync

Official Website

Are you the maker of Brightness Sync?

How to Install Brightness Sync on Mac

Follow these steps to install Brightness Sync using Homebrew, the most popular package manager for macOS. This works on both Apple Silicon (M1/M2/M3/M4) and Intel Macs.

1
Open Terminal
Launch Terminal from your Applications > Utilities folder, or press Cmd + Space and type "Terminal".
2
Install Homebrew
If you don't have Homebrew yet, paste the install script from brew.sh into Terminal and follow the prompts.
3
Run brew install --cask brightness-sync
Paste the following command into Terminal and press Enter:
brew install --cask brightness-sync
4
Verify Installation
Run `brew list` to confirm brightness-sync is installed, then try `brightness-sync --version` to check the version number.
5
Launch Brightness Sync
Run `brightness-sync` in your Terminal to start using it.

Troubleshooting

• If you see a permission error, try prefixing the command with sudo.
• If Homebrew can't find the package, run brew update first to refresh the package list.
• On Apple Silicon Macs, make sure Homebrew is installed at /opt/homebrew (the default for M-series chips).

Key Features

Easy installation via Homebrew

Regular updates and maintenance

Free to use

Professional support available

Pros

Simple one-command installation
Well-maintained and regularly updated
Completely free to use

Cons

Requires Homebrew to be installed
macOS only

Frequently Asked Questions about Brightness Sync

How do I install Brightness Sync on Mac?

Open Terminal, install Homebrew if you haven't already (visit brew.sh), then run brew install --cask brightness-sync. The app will be downloaded and installed automatically. You can then run brightness-sync from Terminal.

Is Brightness Sync free?

Yes, Brightness Sync is completely free to use.

How do I uninstall Brightness Sync?

Open Terminal and run brew uninstall --cask brightness-sync. Homebrew will remove Brightness Sync and all associated files cleanly. You can verify it was removed by running brew list.

What are alternatives to Brightness Sync?

There are several system utilities apps available for macOS. Browse the System Utilities category on Bundl.run to compare features, popularity, and install counts for similar tools.

How do I update Brightness Sync to the latest version?

Run brew upgrade --cask brightness-sync in Terminal to update to the latest version. You can also run brew outdated to check if an update is available.

Does Brightness Sync work on Apple Silicon (M1/M2/M3/M4)?

Yes, Brightness Sync can be installed on both Apple Silicon and Intel Macs via Homebrew. Homebrew automatically handles the correct version for your hardware.