Settings
Theme
Training layout
Interface language
RGB effect
Calibrate keyboard
Training characters follow QWERTY. Highlighted keys follow physical KeyboardEvent.code. Typed characters use KeyboardEvent.key, including Shift and AltGr.
QWERTY training uses English (US) characters. Physical US / UK QWERTY keyboards match this training layout most closely.
XP, levels, unlocks and settings are kept in a small cookie (about 1–3 KB, 400 days) so they survive closing the browser or restarting the PC. Detailed session history stays in this browser only. No database. Export JSON if you change computers. Clearing cookies or site data still deletes progress.