The best free alternative to Spacedesk is Deskreen, which is also Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to Spacedesk and 19 is free so hopefully you can find a suitable replacement. Other interesting free alternatives to Spacedesk are Side Screen, Weylus, Tab Display and QtScrcpy.
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.
Ukraine
Transforms any Android tablet into a Mac's second monitor using USB-C for low latency or WiFi with QR pairing, featuring H.265 hardware streaming, touch input, HiDPI support, lightweight design, Gaming Mode, open-source customization, and virtual display window management.
Vietnam
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.
Allows extension of a Mac or Windows workspace to iPad, Android, macOS, or Windows devices as portable second screens, supporting multiple connections, wireless linking, cross-platform use, and practical multitasking like separating documents, chat, or meetings.
QtScrcpy connects to Android devices via USB (or via TCP/IP) for display and control. It does NOT require the root privileges.
China
Convert an Android device into a high-performance USB monitor for Windows 10, enabling duplication or extension of the desktop, low-latency operation, graphics tablet functionality, pressure-sensitive stylus use, and compatibility with phones or tablets.
Finland
EU
Turn your Mac, Windows, and Linux computers into one seamless workspace with shared keyboard, mouse, clipboard, file transfer, and virtual displays.
LetsView is a free screen mirroring app that allows users to mirror their screen to a larger display in real time, offering superior quality without lag. Easily connect by scanning the QR code!.
Hong Kong SAR China
Interact with your small phone on your big display, your good speakers and your keyboard. Share your iPhone/iPad screen in Zoom/Teams.
United States
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.
This program will let you use two screens on two different computers as if they were connected to the same computer. It even works between different operating systems.
This program will let you use two screens on two different computers as if they were connected to the same computer.
United States
