Browser games and pointless experiments. Nothing to install.
Browser games and pointless experiments. Nothing to install.
How fast can you click when it turns green
Aim TrainerHit thirty targets as fast as you can 
Sequence MemoryRepeat the pattern, one tile longer each time 
Number MemoryHow many digits can you hold at once 
Chimp TestBeat the chimpanzee at working memory 
Color Vision TestSpot the odd shade. Harder every level 
I'm Not a RobotProve your humanity in hilarious ways 
Reflex TapStop the bar at the center - one tap, pure reflex 
Typing Speed Test60 seconds. What's your WPM? A reaction time test measures the gap between a signal appearing and your body responding to it. Here the signal is a screen turning green and the response is a click or a tap. Five rounds are averaged, because a single attempt tells you almost nothing: reaction times vary by thirty or forty milliseconds from one go to the next depending on whether you happened to be mid-blink.
The number you get is not pure nerve speed. It bundles together how long light takes to reach your retina, how long your visual cortex takes to register a change, how long the motor command takes to travel down your arm, and how long the switch in your mouse or the digitiser in your phone takes to report the press. That last part matters more than most people expect, which is why the same person often scores twenty to fifty milliseconds slower on a phone than on a wired mouse.
The median adult scores around 273 milliseconds on a click-when-green test. Anything under 250 is quicker than most people, under 210 puts you in roughly the top fifteen percent, and under 170 is genuinely exceptional. Below 140 usually means the click landed by luck rather than by sight, since it takes about 100 milliseconds just for a visual signal to reach the motor cortex.
Age matters, and more than people like to hear. Reaction time peaks somewhere in the early twenties and slows gradually from there, at roughly two to five milliseconds per year on average. Fatigue, caffeine, screen refresh rate and whether you are using a trackpad all move the number by more than most people's day-to-day variation.
This is one of five short benchmarks on the site. Aim Trainer measures how quickly you can move to a target and hit it, which adds motor control to raw reaction. Sequence Memory, Number Memory and the Chimp Test measure working memory rather than speed. Each has its own page and its own percentile, and your best score on each is stored in your browser rather than on a server.
It is accurate for comparing yourself against other people taking the same test, which is what the percentile is for. It is not a laboratory measurement, because it includes your display's refresh rate and your input device's latency alongside your actual reaction. A wired mouse on a fast monitor will always read faster than a trackpad on a 60Hz laptop.
Around 273 milliseconds for a click-when-green visual test. Under 250 is faster than most people, under 210 is roughly the top fifteen percent, and under 170 is exceptional.
Clicking before the screen turns green voids that round. The delay is randomised specifically so it cannot be timed, and anticipating produces occasional brilliant scores alongside a lot of misses.
You can improve your score, mostly by removing wasted movement, not anticipating, and using better hardware. Underlying neural conduction speed barely changes with practice, so most of the gain comes in the first few attempts and then plateaus.
Touchscreens add latency in the digitiser and the browser's touch handling, typically twenty to fifty milliseconds compared with a wired mouse. Compare phone scores with phone scores.
It is free with no sign-up. Your best score is saved in your own browser and nothing is sent to a server.
Yes. The daily gives everyone the same board, generated from the date, and it resets at midnight UTC. Your result is recorded and the strip above the game shows your last seven days and your current streak. Nothing is sent to a server, so the streak lives on your own device.