How to share a mouse & keyboard between Mac and Windows

You can control both your Mac and your Windows PC with a single keyboard and mouse — for free, no KVM hardware, no cloud. Here's how with ShareClick, an open-source software KVM. It takes about three minutes.

1. install on both machines

Download ShareClick from the releases page: the .dmg on your Mac and the .exe on your Windows PC. Both launch to the menu-bar (macOS) / system tray (Windows). First-launch blocked? See the install help.

2. set one shared passphrase & layout

Open Settings & Monitor Manager on both machines. Enter the same passphrase (it authenticates and encrypts the connection), then say which machine sits on which screen edge — e.g. the PC is to the right of the Mac.

3. grant permissions

macOS: System Settings → Privacy & Security → enable Accessibility and Input Monitoring for ShareClick.
Windows: allow ShareClick through the firewall when prompted.

Both machines must be on the same Wi-Fi / LAN.

4. just move your mouse

Slide the cursor into the shared screen edge — your keyboard and mouse now drive the other computer. Push back to return. Copy on one machine and paste on the other; the clipboard syncs automatically, and you can send files too.

That's it. One keyboard, one mouse, one clipboard across your Mac and Windows PC — encrypted, low-latency, and free.

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