Barrier is described as 'Cross-platform software utility for sharing your mouse and keyboard between multiple computers on your desk. It was forked from Synergy version 1.9's codebase' and is a very popular Mouse Sharing utility in the os & utilities category. There are more than 10 alternatives to Barrier for a variety of platforms, including Windows, Mac, Linux, BSD and Flathub apps. The best Barrier alternative is Input Leap, which is both free and Open Source. Other great apps like Barrier are Synergy, InputShare, Mouse without Borders and Input Director.
Barrier alternatives are mainly Mouse Sharing Utilities, but if you're looking for
Keyboard Sharing Utilities or Remote Desktop Tools you can filter on that. Other popular filters include
Linux. You can also filter by region, for example
EU-based alternatives if you prefer software developed in the European Union. These are just examples - use the filter bar below to find more specific alternatives to Barrier.
The no-brainer best and free option if you use Apple ecosystem