Test your device.A little more certainty.

Screen, keyboard, speakers and mouse. Try each one right here, no install, no account.

Quick check0 of 4 tried

Everything runs in your browser. Nothing is uploaded.

Screen Click to change colour

Keyboard Press any key

Focus the keyboard tile to try keys. 0 unique keys observed. No global typing is captured.

Speakers Play a tone

Low-volume 440 Hz tone. Keep system volume comfortable. Bars show the actual generated audio signal; your hearing confirms physical output.

Mouse Move and click

Every button should light up.

A GOOD PLACE TO START

What do you want to test?

See all tests

ONE STEP AT A TIME

A complete check.
At your own pace.

A guided session for the device in front of you. Choose your checks, skip what you don’t need, and keep every observation in context.

Start Complete Test

ON YOUR DEVICE. ON YOUR TERMS.

Your device tells a story.
It stays with you.

Camera and microphone checks run locally. No media uploads, no account, no persistent device fingerprint. Access starts when you choose it, and stops when you’re done.

Our privacy approach

USEFUL. WITHIN REASON.

Real observations.
Honest limitations.

A browser is a useful window into your device. It can show the input it receives, display patterns for you to inspect, and run measured workloads. It can’t certify hardware health.

Understand the tests

What can I check?

Try your display, touch input, keyboard, mouse, camera, audio and controller. Available sensors and performance tests depend on your browser.

How should I read a result?

Each result identifies a browser observation, your own confirmation, an approximation or an unavailable check. There’s no invented device health score.

Does this work on my phone?

Open a test and check its available features. Browser permissions and device support vary; an unavailable API doesn’t mean your device is broken.