KlyveroWebcam Test
Preview camera and inspect negotiated capture settings.
Preview camera and inspect negotiated capture settings.
Enable a local, muted camera preview. Video is processed in this tab. Camera access is requested only when you press Enable camera. Stop releases the camera; hiding or leaving this page also stops capture.
Ready when you are
No preview yet
Camera clips contain video only. No microphone is requested by this test. Recording stays in memory and is deleted when you leave or hide this page.
No recording saved
Settings/frame observations reflect capture pipeline, not guaranteed sensor specs; facingMode is a request; selection may fail
How to use this test
- Enable the local preview, then inspect the selected stream and its negotiated settings.
- Grant access if you want to continue. Inspect the local preview and reported settings.
- Use Stop camera when finished; recordings require a separate Record action.
Checks included in this tool
Camera Recording Test
Record and replay a short local camera sample. Recordings stop at thirty seconds or twenty-five MiB. Codec support and capture availability vary; no microphone is requested by this camera test.
- Enable the camera, explicitly record a short video-only clip and play it locally.
- Grant access if you want to continue. Inspect the local preview and reported settings.
- Use Stop camera when finished; recordings require a separate Record action.
Codec/container/browser dependent; verify support before recording; video only unless microphone separately opted in
Camera Focus/Visual Chart Test
Inspect focus and image clarity against a visual chart. Fine detail is judged visually. This tool cannot read focus motor state or automatically measure autofocus accuracy.
- Display or print the reference chart on another surface, aim the camera at it and inspect the local preview.
- Grant access if you want to continue. Inspect the local preview and reported settings.
- Use Stop camera when finished; recordings require a separate Record action.
Displayed chart/scene inspection cannot certify optical resolution or autofocus hardware; no automatic focus-control promise
How it works & what results mean
How the test works
Preview camera and inspect negotiated capture settings. It uses getUserMedia; MediaStreamTrack; MediaRecorder optional. The workspace shows observations from this browser or asks for your own confirmation.
Understanding your result
Negotiated dimensions and rate describe the stream, not maximum sensor specifications. Observed video callback cadence is also browser-dependent. Settings/frame observations reflect capture pipeline, not guaranteed sensor specs; facingMode is a request; selection may fail Negotiated stream dimensions only; not native sensor resolution Negotiated/observed video frames only, not sensor maximum; throttling applies Missing data, blocked permission and an operation that could not run are shown separately. None establishes a hardware fault.
What you can inspect
Webcam Test
Settings/frame observations reflect capture pipeline, not guaranteed sensor specs; facingMode is a request; selection may fail
Camera Test
Settings/frame observations reflect capture pipeline, not guaranteed sensor specs; facingMode is a request; selection may fail
Camera Resolution Test
Negotiated stream dimensions only; not native sensor resolution
Camera FPS Test
Negotiated/observed video frames only, not sensor maximum; throttling applies
Camera Preview
Settings/frame observations reflect capture pipeline, not guaranteed sensor specs; facingMode is a request; selection may fail
Front/Back Camera Selection
Settings/frame observations reflect capture pipeline, not guaranteed sensor specs; facingMode is a request; selection may fail
Keep checking
Related tests
About this test & common questions
how to test a webcam online without uploading video?
This webcam test opens a local camera preview after you choose to start. Inspect the image and browser-reported camera settings without uploading video.
does a webcam preview prove camera quality?
Preview appearance depends on lighting, browser processing and settings; it does not establish sensor specifications or calibrated image quality.