Screen Test
DeviceCheck your screen for dead pixels, color and more.
Device Tests
Check your screen, speakers, microphone and camera without installing anything. Every test runs locally — nothing is recorded or uploaded.
Refresh Rate Test
DeviceSee your screen’s real refresh rate in Hz.
Sound Test
DeviceCheck left and right speakers or headphones.
Mic Test
DeviceCheck your microphone with a live level meter.
Webcam Test
DeviceCheck your camera, resolution and frame rate.
Which device tests should I take?
Screen TestGo full screen and cycle through solid colors. Look for pixels that do not match.Refresh Rate TestMeasuring now. Keep this tab in front and the number settles in a few seconds.Sound TestPlay a tone in each channel to check your left and right speakers.Mic TestAllow microphone access, then speak. The meter moves if your mic works.Webcam TestAllow camera access to see your live preview, resolution and frame rate.