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How to Share Keyboard and Mouse Between Two Computers

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Updated on: January 28, 2026
Time to read: 9 minutes

A desk with several computers can get cluttered quickly. One keyboard and mouse shared across them keeps things neat and helps you get work done.

We’ll walk through the best options on how to share a keyboard and mouse between multiple devices. There are three main approaches: software-based KM switching, hardware KVM switches, and USB-over-network redirection tools. Each offers benefits, the situations where each works best, as well as its compatibility limits.

Table of Contents

Software Solutions: Seamless and Cost-Effective Approach

Software KM switching works well for users with several computers that each have their own monitor. It lets you move your mouse smoothly from one screen to another and works even when the computers aren’t running the same operating system.

1. Synergy (paid, cross-platform solution)

Using Synergy is one of the most popular ways to share a keyboard and mouse between different machines. Many people use it since it’s easy to set up and works on Windows, macOS, and Linux.

Synergy interface

Best For

  • Workflows that use different operating systems (Windows, macOS, Linux)
  • Developers, designers, or IT experts switching between systems
  • Situations where encrypted data is important


Compatibility

Windows 7 and up, macOS 10.12 and up, Most Linux distributions, Raspberry Pi

Key Features

  • Cross-Platform: Works across Windows, macOS, and Linux systems.
  • Clipboard Sharing: Copy/paste text and files between computers.
  • Drag-and-Drop Transfer: Move files by dragging across screens.
  • Multi-Monitor Support: Compatible with multiple displays per machine.
  • Encryption: SSL/TLS security in paid version.


Limitations

  • Needs a steady network to work well.
  • Setting it up at first might take a bit of network tinkering and some basic tech know-how.
  • Doesn’t work before the computer boots (no BIOS-level access).

2. Barrier (free, open-source alternative)

Barrier is a free, open-source option similar to Synergy that gives you most of the same features. The downside is that it doesn’t include the paid version’s encryption, and it also doesn’t provide customer support.

Content: Share Keyboard And Mouse Between Two Computers with Barrier

Best For

  • People who want a free solution
  • Developers or tech enthusiasts who don’t mind doing setup and troubleshooting
  • Fans of open-source software


Compatibility

Windows, macOS, Linux

Key Features

  • Free and Open-Source: Core features available without commercial restrictions.
  • Cross-Platform: Seamless operation across different operating systems.
  • Clipboard Sharing: Copy/paste across connected systems.
  • Drag-and-Drop: Easy file transfers between computers.


Limitations

  • Barrier doesn’t have encryption, be careful with sensitive info.
  • Support comes from the community and may not always have quick answers or updates.
  • Setup can be a bit more challenging than Synergy’s paid version.

3. Mouse Without Borders (free, Windows-only)

Mouse Without Borders is a free tool that Microsoft developed particularly for individuals using Windows. You control up to four PCs with a single mouse and keyboard using it, and so it works well if you only use Windows machines.

Mouse Without Borders

Best For

  • Windows-only setups, like home offices or small businesses
  • People who want a simple, no-fuss solution with little setup
  • Situations where you just need a basic keyboard and mouse sharing


Compatibility

Windows 7, 8, 10, and 11

Key Features

  • Smooth Cursor Movement: Slide your mouse seamlessly between screens without manual switching.
  • Clipboard Sharing: Copy/paste text and files across Windows computers.
  • File Transfer: Drag-and-drop files between machines.
  • Low-Latency: Quick response for smooth operation.
  • Simple Setup: Easy configuration with minimal network adjustments.


Limitations

  • Windows-only: Mouse Without Borders only works on Windows. Not the best option if you have any Macs or Linux computers mixed in.
  • Limited to 4 computers: Controlling up to four Windows PCs at once at maximum. Not the best if you’ve got more devices.

4. Logitech Flow (premium, integrated solution for Logitech devices)

Flow is a premium feature that Logitech’s Logi Options+ software already has. With the right Logitech devices — MX Master mouse or MX Keys keyboard — Flow makes sharing a keyboard and mouse between multiple PCs simple.

Best For

  • People who already own compatible Logitech gear
  • Professionals working across both Windows and macOS
  • Those who want a top-notch setup that’s easy to manage


Compatibility

Windows 10/11, macOS 10.15 (Catalina) and later

Key Features

  • Seamless Integration: Minimal setup within Logitech software.
  • Cross-Computer Copy/Paste: Transfer text and files between machines.
  • Automatic Detection: Finds compatible computers on your network.
  • Easy-Switch Buttons: One-click device switching.
  • Cross-Platform: Works on Windows and Mac.


Limitations

  • Needs Logitech hardware: Logitech gear is a must to use Flow. It can be an MX Master mouse or an MX Keys keyboard.
  • Limited to 3 computers: You can control three computers with Flow. Any more than that, and it won’t really work.

Hardware Solutions: Reliable, Independent Approach

Software options don’t always cut it. You might need to control a computer during boot-up or work on systems that aren’t networked. In those situations, a hardware solution like KVM switches comes in handy.

KVM switches (keyboard, video, mouse)

KVM switches are physical equipment you can use to control multiple PCs with just one keyboard, mouse, and monitor. They’re often used in professional setups like data centers or IT troubleshooting stations.

Black Box USB-C 4K KVM Switch

Best For

  • Server setups where you need BIOS-level access
  • Fixing or troubleshooting computers that aren’t responding
  • Workstations that need fast, lag-free hardware switching


Compatibility

Works with Windows, macOS, Linux, or basically any system that supports USB and video

Key Features

  • BIOS Access and Low-Level Control: Lets you manage the computer at startup or troubleshoot issues before the operating system starts.
  • OS Agnostic: Runs with any OS and doesn’t require software or network setup.
  • Physical Button or Hotkey Switching: Change between machines using a physical button or keyboard shortcut.
  • Pre-Boot Control: Performs even if the OS isn’t running yet.
  • Multiple Ports: Available for 2, 4, 8, 16, or more computers, depending on your needs.


Limitations

  • Cable management: KVM switches have quite a few cables. And without some organization, your workspace can get cluttered.
  • Initial setup cost: Good-quality KVM switches can be pricey, especially for larger setups with over two machines.
  • Video resolution: Cheaper KVMs might not support high-resolution or high-refresh-rate monitors. Make sure it matches your display.

USB Redirection: Specialized Device Sharing

USB Network Gate

USB Network Gate is one effective option on how to share a keyboard and mouse, or any other USB devices, across multiple PCs over a network. It makes the remote devices act as if they’re plugged right into your computer. And because of this, using one set of peripherals across several machines feels simple and smooth.

Key Features

  • Unlimited USB Sharing – Share multiple USB devices including keyboards and mice across several machines simultaneously.
  • Port-Level Switching – Shares entire USB ports rather than individual devices, making it easy to switch between different peripherals on the same computer.
  • Custom Device Naming – Assign unique names to shared devices for quick identification when managing multiple peripherals.
  • Security – Includes encryption and password protection to secure data transfers and prevent unauthorized access.
  • Remote Access – Control shared USB devices from anywhere, including virtual machines, remote desktops, and blade servers.

How to share keyboard and mouse: step-by-step tutorial

The following steps show you how to use one keyboard and mouse for two or more computers using USB Network Gate.

1. Download USB Network Gate. Then, install it on all the PCs you want to share a keyboard and mouse with.

2. Select a trial or purchase a paid plan.

Select a USB Network Gate usage plan

3. Click the “Local USB devices” tab so you can view all of the available devices.

Click the Local USB devices tab

4. Locate the “Human interface device” field and press ‘Share’ to share the mouse and keyboard between two computers.

share mouse and keyboard between two computers

5. Search in the “Remote USB devices” tab for the required device on the computer that will use the mouse or keyboard.

Search in the keyboard and mouse in the Remote USB devices tab

6. Click “Connect” and you’re ready to control multiple computers with one keyboard.

Common Use Cases

USB Network Gate isn’t only for keyboards and mice. You can use it to share all sorts of USB devices across different setups:

  • Cross-Platform Peripheral Sharing: Control multiple computers on different operating systems with a single keyboard and mouse.
  • Remote Desktop Integration: Use RDP to redirect USB devices and control both local and remote systems. It includes USB connections via Remote Desktop.
  • Thin Client Support: Manage keyboards, mice, or any other shared devices across several thin clients in a virtual environment.
  • Multi-Machine Control: Move between several computers with one keyboard and mouse. You can also control a 3D mouse on a remote PC.


Limitations

  • Cost: Professional use requires a commercial license, and it can be pricey.

Conclusion: Choosing Best Solution for Your Needs

Know what you really need to determine what approach you should go for to share a keyboard and mouse between two computers:

  • Software solutions are a best fit for people who use multiple operating systems. Synergy, Barrier, Mouse Without Borders, and Logitech Flow are also good choices if you want an easy, budget-friendly option.
  • Hardware KVM switches offer fast, smooth control across multiple computers. For example, it’s useful for servers or situations requiring BIOS-level access.
  • USB-over-network solutions, such as USB Network Gate, let you control multiple computers with a single keyboard and mouse, or even specialized USB devices. It’ll work no matter whether the PCs are on the same network or OS.


Decide on a solution that works with your setup, how many computers you have, and your workflow’s complexity to make things run better.