Download Spacedesk 2.1.43 – Use Your Phone or Tablet as a Second Monitor

Spacedesk 2.1.43 is a free application that turns any smartphone, tablet, or secondary computer into an additional monitor for your Windows PC. By installing the Spacedesk driver on your PC and the viewer app on your device, you can instantly extend or mirror your Windows desktop to the secondary screen over your local Wi-Fi network or USB connection.

Spacedesk works across a wide range of devices — iOS, Android, and web browsers — making it incredibly versatile. It is ideal for users who need extra screen real estate for multitasking but do not want to invest in additional monitor hardware. Simply place your phone or tablet next to your monitor and drag windows onto the extended display.

The connection is fast and responsive, making Spacedesk practical for everyday productivity tasks like keeping a browser, chat window, or reference document on a secondary screen while working on your main display.

Key Features

• Turns any smartphone, tablet, or PC into a second monitor for Windows
• Supports iOS, Android, and web browser viewer apps
• Connect via Wi-Fi or USB for a wired low-latency connection
• Extend or mirror your Windows desktop to the secondary screen
• Supports multiple simultaneous secondary screens
• Free to use — no subscription required
• Easy setup: install the driver on PC and the viewer app on your device

How to Install

1. Click the download button above to save the Spacedesk driver installer for Windows to your computer.
2. Run the setup file and follow the installation wizard to install the Spacedesk network display driver.
3. Install the free Spacedesk viewer app on your smartphone or tablet from the App Store or Google Play.
4. Make sure both devices are on the same Wi-Fi network, then open the viewer app.
5. Your PC will appear automatically — tap it to connect and your phone will become a second monitor.