Top Mouse Broadcaster Alternatives for Seamless Multi-PC Control
Mouse Broadcaster is a specialized tool designed to replicate mouse and keyboard actions from a master PC to multiple 'minion' computers on a network. It's incredibly useful for tasks like updating an entire lab of computers simultaneously or potentially in multiboxing scenarios where user input needs to be duplicated across several machines. However, if you're looking for different features, broader platform support, or simply exploring other options, there are several excellent Mouse Broadcaster alternative solutions available that offer similar or expanded capabilities.
Best Mouse Broadcaster Alternatives
If you're seeking to share a single keyboard and mouse across multiple computers, extend your desktop, or simply find a more versatile solution for duplicating input, these alternatives offer robust features and broad compatibility.

Synergy
Synergy is a popular commercial and open-source Mouse Broadcaster alternative that allows you to share one mouse, one keyboard, and one clipboard between multiple Windows, Mac, and Linux computers. Its key features include seamless Mouse Sharing, Keyboard Sharing, and Share Clipboard functionality across different operating systems, making it a powerful two-way sharing solution for various setups.

Barrier
Barrier is a free and open-source cross-platform Mouse Broadcaster alternative that enables sharing a single mouse and keyboard between multiple computers at a workstation. Available for Mac, Windows, Linux, FreeBSD, and OpenBSD, Barrier offers robust features like Share Clipboard, Keyboard Sharing, Mouse Sharing, SSL encryption, Wayland support, and even drag-and-drop capabilities, making it a versatile virtual KVM switch.

Input Director
Input Director is a free personal Mouse Broadcaster alternative specifically for Windows users. It allows you to control multiple Windows systems using a single keyboard and mouse. While designed for individual use, it offers valuable features like Keyboard Sharing and Mouse Sharing, providing a straightforward solution for managing multiple Windows PCs from one setup.

x2vnc (win2vnc)
x2vnc (win2vnc) is a free and open-source Mouse Broadcaster alternative that allows you to use two screens on two different computers as if they were connected to the same machine. Available for Windows and Linux, it extends your desktop across multiple computers, offering seamless transitions and VNC Viewer support for enhanced multi-monitor productivity.

Win2VNC
Win2VNC is another free and open-source Mouse Broadcaster alternative, primarily for Windows, that lets you use two screens on two different computers as if they were one, even across different operating systems. Its core feature is Screen Extension, coupled with Mouse Sharing, providing a simple yet effective way to expand your workspace.
Each of these Mouse Broadcaster alternative solutions offers unique advantages, whether it's cross-platform compatibility, advanced security features, or specialized functionality. Evaluate your specific needs, including the operating systems you use and the type of input duplication or sharing you require, to select the best fit for your setup.