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Browser hardware APIs

Camera and microphone capture in the browser

Browser media-capture APIs let a site request permission to use available microphones and cameras and receive a media stream when the user grants access.

Why it matters

How this changes a diagnosis

If DeviceOK receives a valid camera or microphone stream, that is strong evidence that the browser permission and media path are functioning. It does not prove every other application is configured correctly.

Key points

What to remember

  • Permission is required before sensitive capture starts.
  • Device labels and available-device information can be restricted until permission is granted.
  • DeviceOK keeps its core camera/mic analysis local in the browser.
Use it in DeviceOK

Related live checks

Microphone TestCheck whether your browser can detect your microphone and receive live audio.
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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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Camera Permission CheckCheck whether browser camera permission is available, blocked, or awaiting a prompt.
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Related devices

Where this concept appears

USB MicrophoneWebcamHeadset