Local webcam preview

Start requests video only; no devices are listed and no audio is used.

  • Runs in your browser
  • No upload
  • Check the displayed result

Inputs stay in this tab and are not uploaded or saved automatically. Optional aggregate usage counts and coarse processing diagnostics are sent only after consent, without input content or filenames. Clearing or closing loses inputs; save needed outputs first.

Method and limits

Start requests video only; no devices are listed and no audio is used. A secure context, the camera policy and permission are required. Requests are up to 1280×720 at 30 fps, and the settings shown are negotiated, not hardware specifications. Stop, edit, reset, hiding the tab, pagehide or leaving the page closes all tracks, including late permission replies. There is no photo, recording or export. This is a local browser observation only: no hardware diagnosis and no universal accuracy. Nothing is stored, recorded or uploaded, and no private-data telemetry is sent. Stop or reset clears the session. Browser, OS or permissions may leave results UNKNOWN. At most 4 requests can be pending; Stop cannot dismiss the browser's permission prompt. Late streams are closed.

Negotiated settings

UNKNOWN / not observed

How to use

  1. Start

    Start requests video only; no devices are listed and no audio is used. A secure context, the camera policy and permission are required. Requests are up to 1280×720 at 30 fps, and the settings shown are negotiated, not hardware specifications. Stop, edit, reset, hiding the tab, pagehide or leaving the page closes all tracks, including late permission replies. There is no photo, recording or export. This is a local browser observation only: no hardware diagnosis and no universal accuracy. Nothing is stored, recorded or uploaded, and no private-data telemetry is sent. Stop or reset clears the session. Browser, OS or permissions may leave results UNKNOWN. At most 4 requests can be pending; Stop cannot dismiss the browser's permission prompt. Late streams are closed.

  2. Stop / Reset

    Inputs stay in this tab and are not uploaded or saved automatically. Optional aggregate usage counts and coarse processing diagnostics are sent only after consent, without input content or filenames. Clearing or closing loses inputs; save needed outputs first.

  3. Method and limits

    UNKNOWN / not observed

Questions and limits

Method and limits

Start requests video only; no devices are listed and no audio is used. A secure context, the camera policy and permission are required. Requests are up to 1280×720 at 30 fps, and the settings shown are negotiated, not hardware specifications. Stop, edit, reset, hiding the tab, pagehide or leaving the page closes all tracks, including late permission replies. There is no photo, recording or export. This is a local browser observation only: no hardware diagnosis and no universal accuracy. Nothing is stored, recorded or uploaded, and no private-data telemetry is sent. Stop or reset clears the session. Browser, OS or permissions may leave results UNKNOWN. At most 4 requests can be pending; Stop cannot dismiss the browser's permission prompt. Late streams are closed.

Local interaction

Inputs stay in this tab and are not uploaded or saved automatically. Optional aggregate usage counts and coarse processing diagnostics are sent only after consent, without input content or filenames. Clearing or closing loses inputs; save needed outputs first.

How can I check the current result?

Press Start and allow video if you want to, then press Stop. The muted preview and the negotiated values should clear. No audio, photo or recording is made.