Spacedesk is not available for Linux but there are some alternatives that runs on Linux with similar functionality. The best Linux Screen Mirroring App alternative is Deskreen, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to Spacedesk and five of them are Screen Mirroring Apps available for Linux so hopefully you can find a suitable replacement. Other interesting Linux Screen Mirroring App alternatives to Spacedesk are Weylus, QtScrcpy, VirtScreen and Mirror Hall.
Enables any device with a browser to act as a second screen for computers, featuring secure end-to-end encrypted streaming, entire screen or app sharing, multi-device connections, cross-platform support, advanced video quality controls, and easy WiFi setup.
Transforms tablets or smartphones into graphic tablets or touchscreens for computers, enabling mouse control, screen mirroring, hardware video encoding, keyboard input, stylus support with pressure and tilt on Linux, multi-touch, window capture, and use as a second screen.
QtScrcpy connects to Android devices via USB (or via TCP/IP) for display and control. It does NOT require the root privileges.
Make your iPad/tablet/computer into a secondary monitor on Linux. - GitHub - kbumsik/VirtScreen: Make your iPad/tablet/computer into a secondary monitor on Linux.
MirrorHall creates virtual second monitors over the network using UDP video streaming among Linux desktop or mobile devices. It is optimized for low latency, and is based on gstreamer and GNOME's mutter screen sharing APIs.
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Can only use to mirror screen - not extend desktop & it has to run through a browser window.