external-monitor

🖥 Control your display's brightness & volume on your Mac as if it was a native Apple Display. Use Apple Keyboard keys or custom shortcuts. Shows the native macOS OSDs.

Every display control macOS hides, in one menu bar app: sharp HiDPI/Retina scaling (no more blurry or tiny text), DDC brightness and volume, Extra Brightness past 100%, presets, virtual displays. Free and open source, a no-cost alternative to BetterDisplay and Lunar.

Control your display's brightness from the macOS menu bar. Simple and easy to use.

💻➡️ Extend a HIDPI screen to a normal DPI external display

Turn your MacBook's internal display off while an external monitor is connected

Control your external monitor brightness & volume on your Mac

Candela protects your displays from OLED burn-in and wear: panel health history, a checkup for defects, and the controls macOS leaves out for external monitors (brightness, volume, contrast, custom resolutions, HiDPI scaling). Free and open source.

Content-adaptive display brightness for macOS that follows what's on screen — and learns your preference.

记住并恢复外接屏窗口布局，支持跨桌面、自动加减桌面、DDC 调亮度音量 · Restore external-monitor window layouts across macOS Spaces, auto add/remove Spaces, DDC brightness & volume

Free, open-source display manager for macOS — control external monitor brightness, contrast, volume & inputs over DDC/CI from the menu bar, keyboard media keys, CLI, or Shortcuts. An open alternative to BetterDisplay / Lunar / MonitorControl for Apple Silicon.

Notification banners on the display you're actually looking at — follows your mouse or active window

Use a Mac or a Windows PC as a real extended display for another computer on your local network. Free and open source, macOS ⇄ Windows, no cloud, no account — a Sidecar and spacedesk alternative.

A tool that gives your macOS display beautifully rounded corners.

Instant, context-aware brightness control for Hyprland. Seamlessly manages Laptop Backlights and External Monitors (DDC/CI) with zero-latency caching.

Keep the macOS Dock on your chosen monitor, including stacked displays. Free, open-source menu bar app for multi-monitor Macs.

Official documentation, releases, and automation examples for Display Dimmer by Vantari Works — Windows monitor brightness control with DDC/CI and software dimming.

A lightweight macOS menu bar app that enables HiDPI (Retina) scaling on external displays

A lightweight macOS menu bar utility for switching display resolutions, creating virtual displays, and managing multi-monitor setups.

Automatic Dock manager for macOS — different Dock settings for different displays. Lives in menu bar, switches Dock config instantly when external monitor connects or disconnects.

Control your external monitor brightness on your Linux