LockInMouse

Those who have multiple monitors know how easy it is to accidentally move the mouse cursor to the display you rarely, if ever use. This is particularly irritating if it is an info screen that never needs to be accessed.

LockInMouse is a useful open-source application that enables you to create an invisible border on your desktop, preventing your mouse cursor from moving outside of it. It runs quietly in the system tray and is relatively easy to configure.

When launching the application, you are presented with a simple window where you need to enter the desired coordinates. By setting the top, bottom, left and right limits, you can determine where the mouse cursor should be allowed to move.

If the numbers are a bit confusing, just click the Show Mouse Position button to see the cursor’s X and Y position at any time. Once you have reached the part of the desktop that should be off limits, just get the number and enter it in the appropriate field.

While it is not fully portable, the application can be used immediately after unpacking the downloaded archive. It is advisable to set up a global hotkey that can be used to disable the app at any time, even if you can’t access the main window.

After the configurations have been completed, you can minimize the program to the system tray and get on with your work. You can add LockInMouse to the startup list, as well as specify whether the limiter should be enabled automatically.

In a nutshell, LockInMouse is a straightforward, lightweight and fairly intuitive application that does exactly what its name implies. It allows you to constrain mouse movement on your desktop by creating an invisible border, and it stays in the background without getting in your way.