Device and speed tests
Check your keyboard, screen, speakers and touch screen, or measure your click speed and reaction time. Everything runs in your browser, nothing is uploaded.
Test keyboard
Press any key and see it register on a full on-screen keyboard, with key codes and rollover.
Test click speed
Click as fast as you can for 5, 10, or 30 seconds and get your clicks per second.
Test reaction time
Click when the screen turns green and get your reaction time in milliseconds, averaged over five rounds.
Test for dead pixels
Cycle your screen through solid colors and line patterns to find dead, stuck, and hot pixels.
Test screen colors
Fill your screen with red, black, white, green, or blue, or run a ghosting test.
Test sound
Play test tones from 20 Hz to 20 kHz or white and pink noise on the left, right, or both speakers.
Test speakers
Play a beep on the left speaker, the right speaker, then both, to check channels and wiring.
Test touch screen
Drag across a grid to find dead zones on a touch screen and check how many fingers register at once.