Mouse Latency Test Online
Test mouse latency and click reaction time. Measure input responsiveness in milliseconds with our free online latency test.
Reaction Time Test
Click to start. When the screen turns red, click as fast as you can.
Event Log
Recent mouse events with millisecond precision (last 20)
Click to see events
How to run a mouse latency test
- Click the test area to start. Wait for the screen to turn red.
- Click as fast as possible when the screen turns red. Your reaction time in ms will be displayed.
- Check the event log for millisecond-precision timestamps of each click.
This test measures reaction time plus input latency. Lower values indicate faster response. For a full mouse check, use the main tester.
Mouse Latency Test FAQ
What is a mouse latency test?
A mouse latency test measures the delay between a visual stimulus (e.g., screen change) and your click. It reflects reaction time plus input latency.
What is a good mouse latency?
Reaction times under 250ms are typical. Competitive gamers often achieve 150–200ms. Many factors affect the result, including monitor refresh rate and system performance.
Can I test mouse latency online?
Yes. Our browser-based test measures click reaction time. For hardware-level latency, specialized equipment is needed.