Free to use, no sign-up, works on any phone.
It is set to 15 minutes by default, and the 05m, 10m and 15m buttons switch the length. The clock starts on your first keystroke rather than on page load, and the result card appears when it reaches zero.
Gross WPM counts every character you have typed divided by five, per minute. Net WPM counts only the characters that currently match the passage, and accuracy is recalculated from what is in the box at that moment, so correcting a letter with Backspace clears that error again.
No. The tool holds ten long English paragraphs and shuffles their order into one continuous passage each time you press New Test (Random Text), so you are not retyping the same opening lines. The paragraphs themselves are fixed, only their order changes.
Yes, a full QWERTY layout sits under the text area and highlights each key as you press it, which helps if you are training touch typing. It only renders on screens roughly 1024px wide and above, so it is visible on a laptop or desktop and hidden on phones and small tablets.