Display Dimmer
DISPLAY DIMMER

External monitor brightness control —
from one place.

Adjust brightness (and contrast) for any connected display right from Windows. No more reaching behind the screen or digging through on‑screen menus.

Display Dimmer is a lightweight, native Windows app for external monitor brightness control. It uses DDC/CI when supported, with a safe GPU dimming fallback for monitors that don’t behave well with hardware control.

Get Display Dimmer Microsoft Store Contact support
Free download • Optional Pro upgrade
Per‑monitor brightness & contrast Multi‑monitor friendly Native + memory‑efficient
Display Dimmer app icon
Display Dimmer
Monitor brightness utility for Windows
  • Adjust external monitor brightness from the taskbar
  • Optional DDC/CI hardware control (when supported)
  • Safe GPU-based dimming fallback for unsupported displays
  • Time-of-day schedules and per-app rules
View on Microsoft Store
Windows 10/11 • Works best on DDC/CI-capable monitors

Screenshots

Real UI screenshots from Display Dimmer.

Display Dimmer hero screenshot
Clean controls, modern design
Scheduled and per-app brightness control screenshot
Scheduled + per‑app brightness control
Brightness control on every display screenshot
Brightness on every display (DDC/CI where supported)
Start with Windows and remember brightness screenshot
Start with Windows & remember brightness automatically

Key features

Everything you need for comfortable monitor brightness control on Windows.

Made for external displays

Per‑monitor brightness and contrast controls for docks, dual/triple monitors, and mixed display setups.

Lightweight & responsive

Built as a native Windows app designed to stay responsive and memory‑efficient.

Schedules & per‑app rules

Set time‑of‑day brightness schedules and per‑app rules so your screens adjust automatically.

DDC/CI + fallback

Uses DDC/CI when supported. If hardware control isn’t available (or causes flicker), you can use GPU dimming.

How it works

  • DDC/CI brightness control sends commands directly to the monitor (when supported and enabled in monitor settings).
  • GPU dimming fallback provides a safe alternative for monitors that don’t behave well with DDC/CI.
  • Per‑monitor compatibility lets you disable DDC/CI per display for best results.

Free vs Pro

Free includes 1 scheduled rule and 1 per‑app rule for All Displays. Display Dimmer Pro unlocks unlimited rules, including per‑display rules, plus additional themes.

Get Display Dimmer
Install from the Microsoft Store in seconds.
Get it from Microsoft Store

FAQ

Does it work with laptops?
Display Dimmer is designed for external monitors. Many laptop internal panels don’t support DDC/CI, but external displays connected via HDMI/DisplayPort often do.
What’s the difference between Free and Pro?
Free includes 1 schedule + 1 per‑app rule for All Displays. Pro unlocks unlimited schedules and per‑app rules, including per‑display rules and extra themes.
Why doesn’t DDC/CI work on my monitor?
DDC/CI support depends on your monitor and connection. Make sure DDC/CI is enabled in the monitor’s on‑screen settings, and try a direct cable (some docks/adapters can block DDC/CI).