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Desktop PC diagnostics

Test what the browser can see. Know when it cannot.

Check browser-visible peripherals, display, audio, cameras and game controllers while keeping motherboard, RAM, storage and temperature diagnostics in the correct native-tool layer.

Run these first

Relevant live checks

Keyboard TestPress keys and verify that the browser receives the expected keyboard events.
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Mouse Button TestVerify left, right, middle, and extra mouse button events.
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Webcam TestOpen your webcam locally to verify that the browser can access and display a live camera stream.
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Microphone TestCheck whether your browser can detect your microphone and receive live audio.
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Speaker TestPlay a local test tone to verify audio output.
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Dead Pixel TestShow solid colors full-screen so you can visually inspect for dead or stuck pixels.
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Gamepad Controller TestTest browser-detected controller buttons and analog axes.
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First diagnostic sequence

Do the high-signal checks before risky changes

  1. 1

    Identify whether the problem is an external peripheral or internal PC issue

  2. 2

    Run the closest live DeviceOK test

  3. 3

    Use OS/OEM diagnostics for internal hardware

What DeviceOK/browser can help check
  • Test attached input/media devices
  • Run display reference patterns
  • Check supported browser hardware APIs
What this browser page cannot prove
  • Stress-test RAM safely as a universal web page
  • Read SMART/temperatures/BIOS state generically
  • Prove PSU or motherboard electrical health