Free online tool

Test every mouse button, click interval, scroll wheel and observed movement frequency in your browser.

Private by design
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Mouse latency test online for browser click response

Estimate browser click-to-paint response time with a local mouse latency test and rolling samples.

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Measure click-to-paint response in your browser

This estimates page scheduling and rendering delay. It cannot measure switch or USB latency below the browser.

Average0.00 ms
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How to measure mouse click latency online

The sample covers page event handling and rendering frames. It cannot see the physical switch, USB report interval or wireless radio delay, so use a desktop diagnostic when you need hardware-level latency. Treat the result as browser response time and compare it across browsers or refresh rates when investigating end-to-end input lag.