ZeroedTools – Free FPS Sensitivity Converter & Gaming Test Tools

ZeroedTools is a free browser-based toolkit built for FPS players who want to test, compare, and optimize their gaming setup. The project solves a common problem: sensitivity values work differently across FPS games. Its cm/360 sensitivity converter helps players transfer their settings between Valorant, CS2, Apex Legends, Call of Duty, PUBG, Overwatch 2, and other games while maintaining a consistent physical mouse movement distance. ZeroedTools also includes an eDPI calculator, aim trainer, reaction time test, mouse polling rate test, keyboard tester, controller tester, display refresh rate test, and additional performance tools. Every tool runs directly in the browser, so users do not need to download software, create an account, or install anything. The interface is responsive, multilingual, and designed to make technical FPS settings easier to understand.