Deskreen turns any device with a web browser into a secondary screen for your computer. ⭐️ Star to support our work!

Deskreen fork - As if your screen is "echoing" on another device - Easy ScreenShare - Transform other devices into virtual displays.

BetterCast is an open-source application designed to breathe new life into older Macs. It allows you to use an older Mac as an extended display for your primary computer, a feature similar to Sidecar or AirPlay Receiver but tailored for hardware that Apple no longer supports for these features.