A hotkey-driven monitor brightness tool for Windows. From 100% down to 1% it sets the hardware backlight over DDC/CI (VCP code 0x10), so the panel actually gets darker. Once brightness reaches 0% and the screen is still too bright, a black fullscreen overlay with variable opacity keeps dimming past the hardware minimum.
Multi-monitor aware: a hotkey affects the monitor the mouse pointer is currently on. Monitors are identified by EDID rather than by OS handle, so the configuration survives replugging and port changes. An OSD shows the current value, and a system tray icon offers live per-monitor status plus warnings while degraded.
A settings window covers every option, and the interface is available in fifteen languages, following the Windows display language by default.
Performs no network I/O of any kind: no telemetry, no update checks, no crash reporting.
Note: the overlay does not cover exclusive-fullscreen games or certain Windows system UI such as the taskbar and Start menu. Laptop internal panels do not speak DDC/CI and are not supported. The binary is not code-signed, so Windows SmartScreen warns on first run.
Yes. darkbright-helper is free and open-source software released under the MIT OR Apache-2.0 license.
What is the latest version of darkbright-helper?
The latest version is 0.13.0, released on Oct 17, 2026.
Is it safe to download darkbright-helper?
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 995794783d8986528def6ab0d88444ffac7bad53f3b9a4fc70689454867d9fca.
Which Windows versions does darkbright-helper support?
darkbright-helper requires Windows 10 version 1703 or later and is available for 64-bit (x64) systems.
How do I uninstall darkbright-helper?
Open Settings › Apps › Installed apps, find darkbright-helper and select Uninstall. From the command line, run winget uninstall --id=Ud3g.darkbright-helper -e.
Is there a portable version of darkbright-helper?
Yes. darkbright-helper is available as a portable ZIP archive (darkbright-helper-0.13.0-windows-x64.zip, 64-bit (x64)) that runs without installation. Copy it to any folder or USB drive and run it from there.
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