INPUT TESTS / CHALLENGE
What is your reaction time?
Wait for the signal. React as fast as you can. Compare against yourself.
—msThis attempt
—msSession best
—msSession average
Wait for green, then click as fast as you can. Space or Enter also works.
No account. Just your browser.See the method
Use a result as a starting point
Reaction scores include browser, display and input delays. Compare your own attempts with the same setup; session best and average include only valid attempts.
Does this measure hardware latency or polling rate?
No. Browser event delivery is affected by scheduling and input processing. These tools do not certify hardware latency, USB polling rate, DPI accuracy or switch lifespan.
Where do my results go?
The last 30 runs stay in this browser’s local storage. Use the history button to copy a readable report, export JSON or remove them. Raw keyboard and pointer event streams are not sent to a server by this app.