Set up MouseWizard on macOS and Windows

1. Installation

Download the installer for your platform, then follow the steps for your operating system. Install MouseWizard on every computer you want to share one mouse and keyboard with — it is the same app on both platforms, and any machine can act as the host.

• macOS — download the .dmg, drag to Applications, launch. Grant Accessibility permission when prompted (System Settings > Privacy & Security > Accessibility). macOS also asks for Input Monitoring the first time MouseWizard reads your keyboard.
• Windows — download the installer, run it, launch from the Start menu.

2. Connecting computers

MouseWizard automatically discovers other instances on your local network. Just launch it on two or more computers connected to the same WiFi or Ethernet network.

If auto-discovery doesn't work — common on enterprise networks where mDNS is blocked — you can enter the IP address manually in Settings.

3. Monitor layout

Open Settings and go to the Layout tab. Drag the monitor rectangles to match your physical desk arrangement. The edges where monitors touch become the transition points for the cursor.

Displays with different resolutions or scaling factors are handled per screen, so a 4K monitor next to a laptop display still lines up the way it does on your desk. Hold Alt while dragging to place a screen freely instead of snapping it to its neighbour.

4. Mac and Windows shortcuts

When your cursor crosses between a Mac and a Windows PC, MouseWizard remaps the modifier keys for you. Cmd on your Apple keyboard becomes Ctrl on Windows, so Cmd+C and Cmd+V keep copying and pasting on either side, and the shortcuts in your muscle memory keep working in both directions.

5. Clipboard and files

Clipboard sync is enabled by default. Copy on one machine, switch to another, paste. Supports text, HTML and images up to 10 MB.

Files travel the same way: drag a file towards the screen edge and drop it on the other computer. There is no shared folder to configure and nothing is uploaded to a server — the file goes straight to the other machine over the same encrypted connection.

6. Security

All connections use TLS 1.3 encryption. On first connection you see the remote machine's fingerprint. Optionally set a password in Settings for additional authentication.

The trust model is trust on first use, the same as SSH: machines exchange self-signed certificates once and remember each other afterwards. Your keystrokes, clipboard and files stay on your own network at all times.

7. Trial and licensing

The download is free and needs no account. Starting the 3-day trial asks for an email address, so your trial confirmation and later your license key can be sent to you.

One license activates on up to 3 machines at the same time. Enter it under Settings → License on each computer. See pricing for what is included.

8. Troubleshooting

• Computers not discovering each other — make sure both are on the same network. Check firewall settings for port 24816 (TCP) and mDNS (UDP 5353).
• macOS: input not captured — verify Accessibility permission is granted for MouseWizard in System Settings. After granting it, quit and relaunch the app.
• High latency — use a wired Ethernet connection instead of WiFi for the best experience.
• Cursor crosses at the wrong edge — check the monitor layout; the transition points follow the arrangement you drew, not the physical one.

Still stuck? Email [email protected].

What's next

Download MouseWizard for macOS or Windows, or see what MouseWizard Pro includes.