opendisplay
Turn your iPhone or iPad into a true second Mac display. Free, open-source, and Retina-sharp.
duet-displayexternal-displayipadiphone
OpenDisplay is a free, open-source alternative to Sidecar and Duet Display. It solves the problem of needing an extra monitor by transforming your iPhone, iPad, or even an old Mac into a fully functional, low-latency second screen for your primary Mac over USB or WiFi. It's perfect for developers, students, and professionals who want to extend their workspace without paying for subscriptions or proprietary hardware dongles.
