Input Speed Tests
How fast your hands actually are, in clicks, words and targets.
These tests measure what your hands put out rather than what your senses take in. There is nothing to spot and nothing to decide. The limit is how fast your fingers can produce accurate movements, and practice matters far more here than anything you were born with.
The click speed test counts clicks per second over a fixed window. The spacebar speed test does the same for the keyboard, and has to defeat your computer's key auto-repeat to do it honestly.
The typing speed test reports net words per minute, which is your raw speed with your uncorrected mistakes taken off rather than quietly ignored. The aim trainer times every target on its own, so you see the spread rather than one average hiding your worst flicks.
All four reward equipment. A mechanical keyboard, a fast mouse and a 144 Hz screen are each worth real milliseconds, and pretending otherwise would make the comparison dishonest.
They reward practice even more. Unlike a memory span, every number here moves a lot with training. That gain is real, rather than a claim about carrying over to something else.
The 4 tests in this domain
Numbers and reading in this domain
Speed here is mostly practice, and that is the point
Nothing on this page is a fixed trait. Typing speed roughly doubles between a beginner and a competent touch typist. The gain comes from rebuilding the movement, not from faster nerves.
Skilled typists overlap their keystrokes. The hand is already moving towards the next key while the current one is still going down.
That makes input speed the most trainable thing we measure, and the most honest place on this site to talk about improvement. Take your words per minute from 38 to 55 over a month and that gain is real. It pays off in every hour you spend at a keyboard. Very little else in brain training can say as much.
Accuracy is not a separate score
A typing test that headlines raw speed while hiding accuracy in a smaller font is measuring the wrong thing. Text with a mistake in it is text you have to go back and fix.
So our headline figure is net speed, which is raw words per minute minus the words you got wrong. It is a smaller, less flattering number. It is also the one that predicts how long a document actually takes.
The aim trainer works the same way. A miss does not stop the clock, so hammering the button while sweeping the cursor across the canvas scores worse than one slower, deliberate flick. That is how aiming works in the games these numbers get compared against.
The click speed asterisk
Click speed is the least meaningful measure on this site and by far the most searched. It is here because people want it, and because a clean version beats the alternatives. Most of those count the press and the release separately and hand out impossible numbers.
We count each click once. The timer runs from your first click, not from the page load. Anything arriving faster than a human finger can move is ignored, which filters out most macro software.
What is left is a real measurement of a fairly silly skill. Jitter and butterfly clicking will beat it. Both are hard on your hands and hard on your mouse, and we are not going to write a tutorial for either.
Repetitive strain, briefly and seriously
Click speed tests encourage a movement that is genuinely bad for tendons. It is fast, tiny, and done with a tense forearm.
Ten seconds is fine. Repeating ten-second bursts for an hour to shift a number is not, and the ache tends to arrive days later.
If your hand, wrist or forearm hurts during or after any of these tests, stop. That advice is worth more than the score.