DeskJoin

DeskJoin Screen ยท Extend mode

Use another Mac as a second monitor.

Turn another compatible Mac into extra screen space for your desktop.

Extend your workspace in three steps

  1. Install DeskJoin Screen on both Macs.
  2. Connect both devices through Wi-Fi, Ethernet, or Thunderbolt Bridge.
  3. Open DeskJoin Screen and choose Extend.

The second Mac becomes additional desktop space for documents, reference pages, chat, video, and other windows.

Use another Mac as a monitor FAQ

Can I use another Mac as a second monitor?

Yes. Install DeskJoin Screen on both Macs, connect them locally, and choose Extend to add the other Mac as extra display space.

What macOS version is required?

Both Macs need macOS 12.3 or later.

Does it work over Wi-Fi?

Yes. DeskJoin Screen can connect over Wi-Fi, Ethernet, or Thunderbolt Bridge.