Games

Mouse Steadiness Test - How Steady Is Your Hand?

Hold your cursor on the target and measure your hand tremor with a ranked stability score.

Place your cursor on the center target and hold it as still as you can for 10 seconds. Your micro-shake (jitter) is measured and ranked.

What Is a Mouse Steadiness Test?

This tool measures how still you can hold the cursor on a target. The more your hand trembles, the higher the number; the steadier you are, the lower it goes.

Holding a crosshair on an enemy in a shooter, making a fine selection in photo editing — hand tremor feeds straight into precision. Even when you feel perfectly still, your hand is always moving slightly.

What Makes Your Hand Shake More

A floating arm or wrist — without a contact point, there's nothing to damp the tremor
Gripping the mouse too hard — tension amplifies micro-movements
Sensitivity set too high — tiny motions get magnified on screen
Fatigue or too much caffeine — muscles twitch more easily
A sticky mousepad — friction snags register as shake

How to Steady Your Aim

First, ground your wrist or forearm on the desk. Aiming with a floating arm keeps your stabilizer muscles working constantly, and the tremor shows. Just adding a contact point visibly changes the number.

Next, shift from gripping the mouse to resting on it: pinch lightly with thumb and ring finger, palm merely resting. The harder you squeeze, the more finger micro-motion transfers to the cursor.

Still unstable? Lower your sensitivity a notch. High sens magnifies hand tremor at the same ratio. Players who spend a lot of time holding angles usually land more shots at lower sensitivity.

Results shift day to day with condition and posture. Use the test for comparisons — before and after changing a setting — rather than as a one-shot verdict.

Frequently Asked Questions

Q. What are hand tremors (micro-movements)?

A. Tiny involuntary movements of your hand and mouse. They affect precision in FPS games during sniping and held aim. This test quantifies them by how steadily you can keep the cursor inside a target.

Q. How can I reduce the shake?

A. Rest your elbow and wrist on the desk or pad, loosen your grip, use lower sensitivity so larger arm movements do the work, and go easy on caffeine. Use this test to compare the effect of each change.

Q. How does this relate to FPS aim?

A. The correlation is strong. In held aim, tap firing, and sniper play, shake translates directly into accuracy. Flicking and tracking additionally depend on other abilities like burst reaction and smooth pursuit.

Q. Do DPI / sensitivity settings matter?

A. Higher sensitivity magnifies the same physical shake into bigger on-screen movement, which works against you. FPS players tend to run relatively low sens (800-1600 DPI with roughly 0.4-0.8 in-game).

About the Steadiness Test

A simple test: place your cursor at the center of the target and hold it still for 10 seconds. The human hand can never be perfectly still — tiny vibrations (tremor) are always present. This tool samples that micro-movement at high frequency and turns it into numbers and a picture.

What Is Measured

Standard deviation (px) — spread of cursor positions. The main score metric.
Max deviation (px) — the farthest single excursion from the center.
Total jitter (px) — total movement between frames. Reflects sensor noise and hand tremor.

What It Is Useful For

Checking aim stability for FPS games
Comparing mouse sensor precision and noise levels
Verifying the effect of DPI changes (higher DPI magnifies shake)
Comparing mousepad glide

* Browser cursor coordinates (px) are sampled, so OS settings, DPI, and display scaling all affect results. Best used for comparisons in the same environment (before/after changing mouse or pad).