Synergy is a software application for sharing a keyboard and mouse between multiple computers.
Starting from $29
Best Multiplicity Alternatives ranked by AI · updated May 2025
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Multiplicity enables users to control two PCs with one keyboard and mouse.
Price: $39.99 for a single license
Top 6 Multiplicity alternatives
Input Director is a software KVM switch that allows you to control multiple Windows systems using the keyboard/mouse attached to one computer.
Free for personal use, $25 for a Pro license
ShareMouse allows you to control multiple computers with a single mouse and keyboard.
$29.95 for standard license
Pluralinput is a software that allows users to control multiple cursors on one computer using different input devices.
Free trial available, $19.99 for a single license
5
GiMeSpace KVMShare Pro
GiMeSpace
GiMeSpace KVMShare Pro lets users control multiple Windows computers with one keyboard and mouse over a local network. It is aimed at...
Pros
- Designed specifically for sharing one keyboard and mouse across Windows PCs
- Supports clipboard sharing between connected computers
- Typically uses less desk space than a hardware KVM switch
Cons
- More limited platform support than Synergy or Deskflow
- Less widely documented than leading alternatives
- Network configuration can be less predictable than a hardware KVM
Mouse Without Borders is a Microsoft Garage project that enables controlling up to four computers from a single mouse and keyboard.
Pros
- Developed by Microsoft
- Supports up to four computers
Cons
- Limited to Windows systems
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