Paste text or pick a sample. Choose a mode, set WPM, hit start. When the text ends, a short comprehension check sets your session score.

Effective WPM (eWPM) = WPM × comprehension. 800 WPM at 40% comprehension = 320 eWPM — worse than 400 WPM at 90%. That's the number to push up.

Shortcuts: Space start/pause · R reset · ↑↓ WPM ±10 · Shift+↑↓ ±50 · 123 modes · Esc exit · ? this help.