Xilly
Mouse Latency Test
Check your mouse’s browser event rate and timing consistency in six seconds. This estimates movement reporting, not click-to-screen latency.
Input lag optimization Results Free PC check Windows playbook /blog/reduce-input-lag
Free mouse polling rate and latency test
Move a physical mouse continuously for six seconds to estimate browser event rate and timing intervals. The test runs locally with no download or sign-up. It does not measure click-to-screen latency.
- Observed browser event rate in hertz
- Mean, median and 95th-percentile event intervals
- Timing jitter when timestamp precision permits
- Optional result copying
What a browser mouse test can measure
A browser can show how frequently pointer movement events arrive and how consistent their timing is. This can reveal unstable reporting or large gaps, but it is not a full hardware click-to-display latency measurement.
- Compare common settings from 125 Hz through 8000 Hz
- Spot inconsistent event timing under system load
- Understand browser, USB, wireless, and power-saving limitations
- Learn when external latency hardware is required
How to get a cleaner result
Use a desktop mouse, close heavy programs, keep the pointer inside the test area, and move continuously for the full test. Chrome or Edge can expose higher-frequency raw pointer updates on supported systems.
- Run the test more than once
- Compare wired and wireless modes
- Try another USB port if timing is unstable
- Test with the mouse software set to your intended polling rate
Frequently asked questions
Can a website really test my mouse?
This measures mouse movement events exposed by your browser, not the USB polling rate directly. Browser batching and timestamp precision affect the estimate. Full click-to-screen latency requires external measurement hardware.
Why is my result lower than my mouse setting?
Browsers can combine or limit events. Movement speed, background load, and the input device also affect the result. Use a physical mouse, move continuously, and compare several runs under the same conditions. A low result alone does not prove a mouse or USB fault.
Is a higher polling rate always better?
No. Higher polling rates reduce the time between reports but can increase CPU load. Compare frame times and responsiveness in your actual games; this browser test cannot choose the best setting for your system.
Does this test change anything on my PC?
No. Movement samples are processed locally in memory and are not uploaded or saved by the test. It does not install software or change settings. Copying a result is optional; normal website analytics are separate.