Lightweight DDC/CI external monitor brightness controller (TUI + CLI).
brightctrl adjusts the brightness of external monitors over DDC/CI from the
terminal — both an interactive TUI and a scriptable CLI. A single native
binary with no runtime dependencies. On Windows it uses the Monitor
Configuration API.
| Publisher | shahriyardx |
|---|---|
| Version | 0.2.5 |
| Release date | 2026-08-16 |
| License | MIT |
| Installer type | portable |
| Architecture | x64 |
| Package ID | shahriyardx.brightctrl |
winget install --id=shahriyardx.brightctrl -ewinget upgrade --id=shahriyardx.brightctrl -ewinget uninstall --id=shahriyardx.brightctrl -ebrightctrl adds this command to the command line: brightctrl.
Yes. brightctrl is free and open-source software released under the MIT license.
The latest version is 0.2.5, released on Aug 16, 2026.
The download button links to the official installer published on github.com, the same file Windows Package Manager installs. You can verify the downloaded file by comparing its SHA-256 checksum with 8e7aef7565e35f5801803961ed98191038a9dc64e7fd7bd6a83b89309b8dbc14.
brightctrl runs on Windows and is available for 64-bit (x64) systems.
Open Settings › Apps › Installed apps, find brightctrl and select Uninstall. From the command line, run winget uninstall --id=shahriyardx.brightctrl -e.
Yes. brightctrl is available as a portable program (brightctrl.exe, 64-bit (x64)) that runs without installation. Copy it to any folder or USB drive and run it from there.
Other Command Line Tools programs for Windows from different developers.
Hotkey brightness control for Windows monitors via DDC/CI, plus a dimming overlay for when 0% is still too bright.
Effortless Brightness Control for Multiple Monitors
Black out or dim idle secondary monitors to help prevent OLED burn-in.
Switch your monitors between two inputs from the system tray via DDC/CI.
Windows tray utility for DDC/CI monitor brightness and HDR control.
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