online mirror webcam
The camera captures the video, the browser draws the frame in a local element and a horizontal transform flips the image left to right before showing it on screen, the same way a physical mirror flips light.
Without a transform, the image comes out exactly as the camera captured it, so any text or wristwatch shows up the real way, not flipped.
The resolution reported by the track stays 1280×720 after `scaleX(-1)`, because the transform happens at the CSS rendering step, not during capture or video encoding.
If the user denies the camera prompt or closes the tab, the `getUserMedia()` promise rejects and no frame is drawn, with no video data ever leaving the device.
No. The preview is rendered locally in the browser; there is no recording or upload. Stopping the camera ends the stream.
Because the app applies `scaleX(-1)` only to your own preview, to match what you see in a real mirror, but it sends the original, unmirrored frame to everyone else on the call.
No: the video captured by `getUserMedia()` stays only in the page local element, `scaleX(-1)` happens inside the browser itself and no frame leaves the device over the network.
No: `scaleX(-1)` is a CSS transform applied at display time, so the resolution, FPS and bitrate reported by the video track stay exactly the same before and after mirroring.
Yes: `getUserMedia()` only runs in a secure context, meaning pages served over HTTPS or on `localhost`; on a plain HTTP site the browser blocks the camera request before even showing the permission prompt.
The video stays local in this tab; nothing is uploaded to the server.