The diagnostics bench · free · nothing leaves your browser
Is your gear actually working?
Put it on the bench. Eight instruments test your keyboard, mic, webcam, screen, mouse, controller and speakers in seconds, right here in the browser. Start typing and watch the strip below answer.
The bench
Choose an instrument
Keyboard Tester
Every key, live. Find dead keys, ghosting and stuck switches.
run test →Mic Test
See your voice as a live meter and waveform. Nothing is recorded.
run test →Webcam Test
Preview your camera with resolution and frame-rate readout.
run test →Dead Pixel Test
Fullscreen color sweep that exposes dead and stuck pixels.
run test →Mouse Test
Buttons, wheel, double-click speed and pointer behavior.
run test →Controller Tester
Sticks, triggers and buttons on a live gamepad diagram.
run test →Sound Test
Left-right channels, frequency sweep and phase check.
run test →Monitor Test
Banding, sharpness and uniformity screens for your display.
run test →Why test in the browser?
Because it answers the only question that matters in ten seconds: is the hardware broken, or is it the software? A key that fails here, in a clean browser page with no game running and no drivers in the way, is a key that fails, full stop. A mic that meters here but stays silent in your call app tells you exactly where to look next, and it is not the mic.
Every instrument on this bench runs locally. Your keystrokes, voice and camera feed are processed by your own machine and never uploaded, which is also why the tests start instantly and work offline once loaded.
When to run a checkup
- New gear day: test everything inside the return window, not after it.
- Something feels off: confirm the fault before you buy a replacement; it is software more often than you would think.
- Before selling: run the tests, screenshot the results, and list with confidence.
- Before the big call or the ranked match: thirty seconds now beats discovering it live.