Free, open-source Sidecar/Duet alternative — use your iPhone or iPad as a true second monitor for your Mac over USB or WiFi. Low latency H.264, Retina HiDPI, touch input.
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Updated
Jul 13, 2026 - Swift
Free, open-source Sidecar/Duet alternative — use your iPhone or iPad as a true second monitor for your Mac over USB or WiFi. Low latency H.264, Retina HiDPI, touch input.
macOS multi-mouse & multi-external display assignment for complex screen and peripheral workstations.
React Native view renderer in External Display
Quick and simple tray icon menu for changing the monitor layout. A great companion to ARandR tool.
SpriteKit and external-display
A tool for control monitor from the command line on M2 macs.
Native macOS menu bar toolbox for keyboard and trackpad cleaning lock, privacy cover, screen testing, window management, Finder tools, display standby, battery and network checks.
macOS app to show/hide MacOS Dock when connecting/disconnecting external display(s)
Turn iPhone, iPad, and Android into a second display for macOS / 将 iPhone、iPad 和 Android 变成 Mac 第二屏。Open source, local-first, HEVC, experimental high refresh.
Scripts for getting some functions working on a Thinkpad P51
Original DisplayLink driver modified in order to be able to be built for OpenSUSE Tumbleweed
LG 27GX790B (1440p 540Hz) kernel panics Apple Silicon Macs: 'Unsupported number of horizontal slices for DSC' — root cause analysis and working fix
Turn off your MacBook display without closing the lid.
M5Cardputer Audio Player - portable MP3/WAV player with external ILI9341 display and retro Winamp-style interface. Auto-detects hardware variants, full keyboard controls, visual equalizer, headphone support, and battery monitoring. Turn your M5Cardputer into a standalone music player with a larger external screen.
Monitor the contents of a secondary display via a real-time, scaleable floating window on your primary display.
Wireless Mac-to-Tesla screen streaming over local Wi-Fi (WebRTC, no internet needed)
A config file that will set your NVIDIA graphics card as the primary one. Originally created to solve the HDMI "No Signal" issue when connecting a laptop to an external monitor.
Ultra-light macOS menu bar app for external monitor brightness, input switching, and a per-display night dimmer over DDC/CI — an open-source MonitorControl alternative for Apple Silicon (M1/M2/M3/M4).
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