How fast are you today?
Eight short tests of reaction, memory, typing and focus. Do one, or do the round and get a single score for the day. Your history stays in this browser — there is no account, no leaderboard, and nothing is uploaded.
Start the daily round All eight, about five minutes, one score.The eight tests
- Reaction Time Test Five rounds, your median, and every attempt you have made.
- Typing Speed Test WPM, accuracy and consistency — on sentences, not random words.
- Number Memory Test One more digit each round, until you drop one.
- Sequence Memory Test Watch the pattern, repeat it back, one longer every time.
- Verbal Memory Test New word or one you have seen? The list keeps growing.
- Visual Memory Test A pattern flashes once. The grid grows every level.
- Aim Trainer Thirty targets, timed, plus the misses most trainers hide.
- Stroop Test Name the colour, not the word. See what the conflict costs.
Why there is no account
Your results never leave this browser
Every test runs entirely on your device and stores its results in local storage. Nothing is transmitted, so there is nothing for us to see, sell or lose. That is also why there is no sign-up: there is no server-side record to attach an account to.
The trade-off, stated plainly
Nothing syncs between devices, and clearing your browsing data deletes your history. There is an export button that produces a JSON file you can import elsewhere — the manual version of sync, and the honest one.
Scored against a fixed scale, not other people
Each test converts to a figure out of 100 against a fixed range rather than a percentile. Your score cannot move because of who else played today, which is what makes a personal history worth keeping.
No streak mechanics designed to trap you
There is a streak, because a reason to come back is the point. There are no notifications, no emails and no way to lose progress by missing a day beyond the streak resetting. Your history is kept regardless.
What these tests are not
They are consumer tests in a web browser. Your screen's refresh rate, your mouse, how much sleep you had and what else is running on the machine all move the numbers, sometimes by more than genuine day-to-day variation in you.
None of them is a diagnostic instrument. Reaction time, digit span and Stroop tasks all appear in clinical and research settings, but with calibrated equipment, standardised administration and normative data that a web page cannot supply. A low score means you had a bad run — it is not evidence of a condition, and if you are worried about your memory or attention, that is a conversation for a doctor.
Compare yourself against your own history rather than against a table, and look at a fortnight rather than a single attempt.