About This Tool
Aim Trainer is a mouse-accuracy drill where targets appear at crypto-random positions and you click them before they expire. Three difficulty levels adjust target size and time-to-live; two duration options (30s, 60s) let you match your practice window.
Each hit measures your reaction time with performance.now(). Round stats report hits, misses, accuracy percentage, and average reaction time in milliseconds. Your best score for every (difficulty, duration) combination is saved in your browser.