Hardware Tester

Keyboard Tester

Press any key to test. Keys light up blue when held and turn green after being pressed at least once. Switch between US and UK layouts.

Layout:

Last key: —

Code: —

Key: —

Location: —

Keys pressed: 0

Press keys…

Total unique keys tested: 0

Currently held: 0

Play a reference tone through the left, right, or both speakers. Start playback with a button click so it works with browser autoplay policies.

Left

Right

Output channel

Left only

Right only

Center

All / mono

Test tone Volume 35%

Ready — choose an output channel.

Grant camera permission when prompted. You can switch between available cameras and check resolution / frame rate.

Camera Off

Click “Start Camera” to begin

No Camera Active

Grant microphone permission. Speak to see the level meter and waveform. You can also record a short clip and play it back.

Input level 0%

No Microphone Active

All processing is done locally in your browser.
Nothing ever leaves your device — No uploads, No servers, No logs, No file names collected.
No account required. No login. No email.