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A sticky board for buttons, polling, double-click, CPS, and path smoothness. Tap any note to start.
Full browser-side checks for buttons, wheel, and performance — no install.
Left, right, middle, side buttons and scroll direction with live feedback.
Circle the mouse to estimate Hz and track peak polling rate.
Catch switch chatter and measure the gap between presses.
Measure clicks per second — train speed or compare switch feel.
Draw the cursor trail to spot stutter, zigzags, or dropouts.