Mouse without Borders

Mouse without Borders is a free utility tool for Windows PCs, created by developer Truong Do as part of the Microsoft Garage Project.

Designed for users who frequently operate more than one computer simultaneously, this program enables seamless control of up to four PCs using just one keyboard and mouse.



Beyond navigation, it also supports file transfer and clipboard sharing across systems, eliminating the hassle of juggling multiple peripherals.

The software was originally developed as a side project within Microsoft’s experimental Garage initiative, which encourages employees to create innovative tools.

Mouse without Borders has since gained popularity among productivity-oriented users, IT professionals, and developers who often work with several machines at once.

Main Features

• Control up to four Windows PCs with a single set of peripherals.
• Drag and drop files between connected machines.
• Copy and paste text, links, or images across systems with a shared clipboard.
• Customizable hotkeys to speed up switching and workflow.
• Options to restrict mouse crossing between displays if needed.
• Lightweight design with minimal resource consumption.
• Automatic reconnection if a system restarts.

User Interface

The interface is simple and functional, aligning with Microsoft’s utility-style design philosophy. The main configuration screen shows the connected PCs, their names, and the security code required for pairing.



A settings menu allows you to fine-tune behaviors such as enabling clipboard sharing, restricting screen borders, or assigning shortcuts. While not flashy, the UI is clear, intuitive, and efficient for its purpose.

Installation and Setup

Installation is straightforward. You download the installer from the official Microsoft page, then run it on all the machines you want to connect. During the setup, one computer acts as the primary host and generates a security code and PC name.

You then enter this information on the secondary PCs to establish the link.

Important note: all machines must run the same version of Mouse without Borders to work properly. If you have an older version installed, you can uninstall it via Control Panel or with the provided command line.

Once configured, the program launches automatically on startup, ensuring your multi-PC workflow is always ready.

How to Use

After setup, using the Microsoft Garage Mouse without Borders tool feels natural. Move your mouse to the edge of one screen, and it glides onto the next PC as if you were working with a multi-monitor setup.



Files can be dragged and dropped across systems, and text copied on one machine can be pasted on another instantly. You can also customize hotkeys for tasks like locking all PCs at once or blocking the cursor from moving across machines.

For maximum efficiency, arrange your PCs physically in the same order that you configure them within the program. This keeps mouse movements logical and fluid.

FAQs

Can I use Mouse without Borders on more than four PCs?
No, the software currently supports a maximum of four machines.

Does it work with macOS or Linux?
No, it is designed exclusively for Windows operating systems.

Is there support for Windows 11?
At present, Windows 11 compatibility is limited. Users have reported issues, though future updates may improve support.

Can I transfer large files between PCs?
Yes, but transfer speed depends on your local network. Very large files may take longer compared to dedicated file-sharing tools.

Do all PCs need to be on the same network?
Yes, all connected computers must be on the same local network for the program to function.

Alternatives

ShareMouse - Offers drag-and-drop and clipboard sharing, but in a commercial package.

Synergy - A cross-platform tool that allows sharing a mouse and keyboard between Windows, macOS, and Linux.

Pricing

This tool is completely free to use. There are no hidden costs, subscriptions, or licensing fees, making it one of the most accessible tools for multi-PC control.

System Requirements

• Windows 11
• Windows 10
• Windows 8.1
• Windows 8
• Windows 7
• Windows Server 2016
• Windows Server 2012
• Windows Server 2008
• Windows Server 2003
• Microsoft .NET Framework 4.0 or higher

PROS

• Free to use
• Lightweight and efficient
• Supports up to four PCs
• File transfer and clipboard sharing
• Simple installation process
• Customizable hotkeys
• Reliable performance on supported systems

CONS

• Windows-only (no macOS/Linux)
• Limited to four machines
• Requires the same network connection
• Drag-and-drop is slower for very large files
• Interface is functional but basic
• Occasional connectivity drops in unstable networks

Conclusion

Mouse without Borders is a clever, lightweight solution for anyone juggling multiple Windows PCs in the same workspace. Its ability to merge up to four machines under one keyboard and mouse setup greatly enhances productivity while reducing desktop clutter.

With features like drag-and-drop file transfer and clipboard sharing, it goes beyond simple input control to become a practical collaboration tool between devices.