Switch between computers simply by moving your mouse

Synergy is the essential mouse and keyboard sharing tool for anyone who uses more than one computer at the same time.

Synergy 1

v1.22.4

Oct 27, 2026 (18 days ago)

Synergy 3

v3.9.1

Oct 29, 2026 (17 days ago)

Synergy 4 Dragon Beta

v4.0.0

Nov 11, 2026 (3 days ago)

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Synergy 3 is here!

Introducing Synergy 3, the next big step for multi‑computer productivity.

We completely rebuilt our GUI from the ground up, and implemented a brand new auto-config and auto-discovery feature.

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Unify

Link all your computers

Connect as many computers as you have into one seamless experience. Share one mouse, trackpad, and keyboard between all of them.

  • Windows
  • macOS
  • Linux
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Effortless

Seamless switching

Changing between computers is as simple as moving your mouse off the edge of one screen and onto another. It’s intuitive and fast and makes your multi-computer setup much simpler.

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Network security

Keep your data secure on the network

Protect your keystrokes and clipboard data sent over the network. Network security is provided through strong TLS/SSL encryption.

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Send data

Copy and paste between computers

Copy text and images from one computer, move your mouse to another computer, then paste. Simple but effective clipboard sharing between your computers.

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Key swapping

Swap keys automatically

Swap the Windows and Command keys automatically as you switch from Windows to Mac, allowing you to make use of built-in shortcuts such as Cmd+C (copy) and Windows+D (show desktop).

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Hotkeys

Customize your keyboard

Powerful hotkey configuration options allow you to customize exactly what your keyboard does across all of your computers.

How does it work?

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Reliable and fast

When you press a key on your keyboard or move your mouse, those actions are transferred at high speed over your local network (either WiFi or ethernet) to the computer you currently want to use.

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Private and secure

Synergy doesn’t connect to the Internet. Your keystrokes and clicks are sent directly between your computers, and that’s it. For the highest security needs, local TLS encryption is available in higher editions.

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Easy to set up

  1. Install on all your computers.
  2. Connect your mouse and keyboard to one of them.
  3. Start moving your mouse from screen to screen.