second-display

Turn spare devices into real extra displays for your Mac or Windows PC — iPad, iPhone, Android, Windows, Linux, even an old 5K iMac. Free, open-source Sidecar/Duet/spacedesk alternative. No subscriptions, no cloud, no accounts.

Free open-source iOS 12 iPad/iPhone second monitor for Mac. OpenDisplay-compatible client over USB/Lightning & Wi-Fi. Sidecar/Duet alternative for old devices.

Use an old jailbroken iPad (iOS 6+, tested on iPad 2) as a real extended display for your Mac, over USB or Wi-Fi. Native iOS 6 app with libjpeg-turbo NEON, ~35 fps.

Turn any iPad into a wireless monitor for your Mac. Stream an existing display or a virtual iPad-sized one over your local network using the built-in HEVC engine — nothing to install — or NDI, with private pairing, live display controls, and Capture One integration. iPads can also browse, rate, and color-tag a session shared by Live for Studio.

Use an Android tablet as a wired, low-latency second display for your Mac, with pen and touch

Turn your iPad into a Sidecar display from the macOS command line — works headlessly, even when your Mac's screen is dead. Bind it to a keyboard shortcut.

OpenDisplay fork for Mac to Android tablet display, Chinese UI, and iOS self-build support.

Use an old iMac (2015+) or any old Mac as a 4K external display for your MacBook. Wired or wireless, free, open source, with MCP control.

Turn an iPad Air 1st generation (A1474, MD785LL/B, iOS 12.5.8) into a wired Retina second display for macOS

Turn a spare iPad into a second display for your Mac, over the network. A WebSocket binding for the OpenDisplay protocol.

Cast your Mac's screen and sound to a Chromecast with low delay. Mirror or use the TV as a second display. Native, free and open source.

Mirror of peetzweg/opendisplay - Turn your iPhone or iPad into a true second display for your Mac (open source)

Auto-reconnect Apple Sidecar on macOS. Keeps your iPad working as a second display after sleep, lock or lid close, without "Unable to connect" notification spam.

Use an old Mac as a second display. Adds a macOS receiver to OpenDisplay — an iMac 27" 2017 runs at true 5K (5120x2880), pixel-sharp with no scaling, over WiFi.

Mac Everywhere, On Whatever Display. Open-source Mac display and control app for iPhone, iPad and Android.

Your tablet. Your Mac's second screen. Wireless display for Mac on any Android tablet, by Imperial ECC.

Cord: more screen for your Mac. Use the Android tablet you already own as an extra display, over a USB-C cable.

Start and stop Sidecar from the command line on macOS: connect an iPad over the cable or Wi-Fi from a script or a shortcut.

Mirror or extend your Mac screen (with system audio) to a DLNA smart TV at ~1 s latency. Built for Samsung TVs without AirPlay.

Use your other Mac as a second display. One click, full screen, over a cable or Wi-Fi. Free and open source.