Settings

Preferences stored in your browser. No account, no server.

Sound & motion

Sound effects

Subtle dings on new best, chimes on grade-ups, level-up fanfare.

Animations

Smooth transitions, percentile bar sweeps, toast slides. Turn off for reduced motion.

Aiming

Raw aim (recommended)

Locks the pointer and reads raw, unaccelerated mouse movement on the aim tests — like an FPS. Your saved cm/360° controls the speed. Press Esc to release. Turn off to aim with the normal desktop cursor.

Theme accent

Accent color

Tints the grade badges, percentile bar, and other highlights.

Data

Reset all data

Clears profile, scores, history, achievements, XP, streak — everything. There’s no undo.

Where settings live

Everything is in your browser’s localStorage. Clearing browser data (or using incognito) wipes all FastX state — settings, scores, achievements, the lot. There’s no account system to recover from.