Tests

Check your keyboard, mouse, mic, webcam and screen.

Input devices

Keyboard TesterPress every key and watch it light up — find dead or sticky keys.Mouse TesterCheck every button, double-click speed and the scroll wheel.Gamepad TesterSee every button, trigger and stick of a connected controller live.Click Speed TestHow many clicks in 10 seconds? Measure your CPS.Typing Speed TestType for one minute and get your WPM and accuracy.

Reflexes & memory

Reaction Time TestWait for green, click fast. Average of five rounds in milliseconds.Aim TrainerHit 30 targets fast. Average time and accuracy scored.Number Memory TestHow many digits can you hold in your head?Sequence Memory TestRepeat the pattern as it grows, Simon-style.Visual Memory TestMemorise the lit tiles, then click them from memory.

Screen

What Is My Screen ResolutionSee your screen resolution, viewport size and pixel density.Dead Pixel TestCycle full-screen colours to spot dead or stuck pixels.Refresh Rate TestMeasure your screen's real refresh rate in Hz.

Audio & camera

Microphone TestCheck your mic is working with a live level meter.Speaker TestTest left and right channels, and sweep the full frequency range.Webcam TestPreview your camera and check its resolution and frame rate.Hearing Range TestFind the highest frequency you can hear. Not a medical test.

About these tools

Quick hardware checks that run entirely in the browser: light up every key on a keyboard, count clicks per second, measure reaction time and refresh rate, spot dead pixels, and confirm a mic, webcam, speaker or game controller is actually working before the call or the game starts.

🧪Tests