Kaizu Test Device
Is everything working?
Check a new laptop, a second-hand phone or a desk setup in a few minutes: screen, keyboard, mouse, camera, microphone and speakers. Everything runs in your browser, and no picture or sound leaves your device.
Screen test
Fill the screen with solid colors to spot dead or stuck pixels, check gradients for banding, and see your screen’s real resolution and refresh rate.
Open →Keyboard test
Press every key and watch it light up. See which keys never fire, their key codes, and how many keys work held down together.
Open →Mouse & trackpad
Test left, right, middle and side buttons, double-clicks and scrolling, catch a button that double-clicks by itself, and measure polling rate.
Open →Camera test
Check your webcam’s picture, resolution and frame rate, switch cameras, mirror the view and take a photo that stays on your device.
Open →Microphone test
Watch your voice on a live level meter, then record a few seconds and play it back to hear how you sound.
Open →Speaker test
Play sound on the left, right or both speakers, and sweep from deep bass to high treble to hear rattles, hum or a dead tweeter.
Open →