How to use the mouse testing tool?

Click on the test area on the page, then press various mouse buttons and scroll wheel, the system will display detection results and status information in real-time.

What gestures does trackpad testing support?

Supports common trackpad operations such as single-finger click, two-finger zoom, multi-finger swipe, gesture recognition, and can detect touch trails and gesture states.

Mouse Polling Rate Estimator

Estimate your mouse polling rate by measuring pointermove timing jitter in the browser.

Samples

Estimated Hz

Median interval

Jitter (σ)

Move Area

Press Start, then move your mouse around inside the area.

Tip: Use consistent, smooth movement for best stability.

Browser/OS scheduling can affect results; treat this as an estimate.

Press Start

Last interval

No samples yet.

Interval Histogram (0–20ms)

No samples yet

Start and move the mouse to collect samples.

Polling rate is how often the mouse reports updates (e.g. 125/250/500/1000Hz). In the browser we observe pointermove timing and estimate Hz from the median interval.

• Works entirely in-browser (no installs) • Median-based Hz estimate plus jitter (σ) • Histogram view for interval distribution • JSON export of raw intervals • Useful for quick sanity checks after driver/USB changes

1) Click Start. 2) Move your mouse continuously in the area for 3–10 seconds. 3) Check the estimated Hz and jitter. 4) Export JSON if you need to share the raw intervals.

• Source: pointermove events captured in a single element • Estimate: 1000 / median(interval_ms) • Jitter: sample standard deviation of intervals (requires enough samples) • Browser/OS scheduling can clamp event frequency (often near display refresh)

• Verify 125/250/500/1000Hz after changing mouse software settings • Compare USB ports/hubs for stability • Spot heavy jitter caused by CPU load/background apps • Quick check when troubleshooting aim/feel inconsistency

Q: Why do I only see ~60–125Hz? A: Many browsers coalesce pointer events; your display refresh rate and system load can limit event delivery. Q: How many samples do I need? A: More is better. Aim for a few seconds of steady movement so the median and jitter stabilize. Q: Why is jitter “-”? A: Collect more samples (move longer) to reach the minimum sample count. Q: Does DPI affect the result? A: DPI changes how far the pointer moves per report, but it should not change the report frequency. Very slow movement can still reduce event delivery. Q: I’m on a touchpad / stylus—does this still work? A: It will show event timing, but it may not represent mouse polling rate. Check the detected pointer type hint. Q: Tips for more stable readings? A: Close heavy apps, keep the tab focused, and move the mouse smoothly at a consistent speed.