Ninety seconds is the endurance format — the longest standard timer, and the most honest measure of real typing ability. Burst speed fades after half a minute; what remains at 90 seconds is your sustainable pace, the number that actually predicts how fast you'll type an email, an essay, or a day's work.
The key skill here is pacing, not sprinting. Start slightly below your max, keep a steady rhythm, and resist the urge to speed up when you see a familiar word — most 90-second scores are lost in the middle third, when concentration dips. Eletypes' consistency stats show exactly where your pace wavers.
Free with no account, like everything here. Your 90-second history is charted locally alongside your shorter tests, so you can watch endurance improve independently of burst speed — and yes, the leaderboard and shareable result cards work for this format too.