Tool categories
Swipe across the pad slowly, then swipe the same physical distance fast. If the pixel distances differ, acceleration is being applied somewhere in your stack.
Mouse Acceleration Test is a free, browser-based mouse testing tool that lets you detect Windows pointer acceleration or firmware-level sensor acceleration.
Mouse acceleration is a non-linear scale applied between the physical motion of your hand and the on-screen cursor. With acceleration off, moving your mouse 10 cm always produces the same pixel travel. With it on, a faster swipe produces more pixels than a slow swipe of the same physical distance. It was designed to help desktop navigation, but for aim-sensitive work (FPS games, aim training, precision drawing) it's a muscle-memory destroyer.
For a controlled check, follow the Windows pointer-setting and slow-versus-fast comparison guide. Repeat equal-distance drags and treat the ratio as a browser observation, not proof of the Windows setting or sensor quality.
The test compares the pixel-per-inch rate of two swipes of the same physical distance — one slow, one fast. The math is dead simple:
Because you control the physical distance of both swipes, the ratio cancels out DPI, monitor resolution, and display scaling. It isolates the acceleration curve itself.
If acceleration is off but the same DPI still feels wrong after changing mice, use the same-DPI sensitivity troubleshooting guide to check real DPI variance, raw input, eDPI, polling rate, mousepad friction, and grip before blaming the game.
Competitive FPS relies on muscle memory — your brain learns that "this much hand motion = this much crosshair motion." Acceleration breaks that relationship because the crosshair now moves faster when your hand does. One-and-done flicks become guesswork. Every major CS2, Valorant, Apex, and Overwatch pro plays without mouse acceleration. If your ratio is over 1.15 here, turn it off before any aim-training session.
Mouse Acceleration Test FAQ
Counts full 360° mouse rotations over 15/30/60 s with peak spins-per-second and direction indicator
Check mouse buttons, scroll wheel, cursor movement, and responsiveness
Measure your click speed (CPM or CPS) with timed tests
Test DPI, sensitivity, and tracking accuracy
Visualize mouse movement trails and precision
Detect unintended or phantom clicks
14 tools · 3 Web Stories
01 / 10
Shape before specs
Rival Pro or Sensei Pro?
Start with fit, size and button reach. The wireless headline is shared. Stock photos illustrate gaming.
01 / 10
Mouse showdown
M42V2 vs M42
The new mouse drops 14 g and seals the shell—but also moves from a PixArt 3389 to a 3327.
01 / 10
MMO mouse decision
Is Razer's $180 Naga V3 Pro worth it?
The answer depends on your binds, grip and tolerance for a heavier mouse.
Compare SteelSeries Rival Pro and Sensei Pro shapes, Mini sizes, battery life, UWB and price, with a practical fit worksheet and delivery-day mouse checks.
