Video Recording Test
Record from your camera, play back instantly, check file size, and download the clip. Everything stays in your browser — no data is uploaded anywhere.
This test verifies that your browser can record video from your webcam using the MediaRecorder API and produce a downloadable WebM file.
Recordings use WebM format with VP9 codec (VP8 fallback); a 10-second 1080p clip typically produces a 2–5 MB file.
Permission Required
We need access to your camera to test it. No video leaves your browser.
What Do Your Results Mean?
| Result | Range | Meaning |
|---|---|---|
| Good | Recording plays back smoothly with audio sync | Your camera and MediaRecorder work correctly. The resulting WebM file is ready to download. |
| Warning | Recording works but file is unexpectedly large or small | Large files may indicate high bitrate; small files may mean low resolution or short duration. Check camera resolution settings. |
| Bad | Recording fails or produces no playback | MediaRecorder may not support the requested codec. Try a different browser (Chrome or Firefox recommended). |
Common Issues and How to Fix Them
Recording produces no video file
Ensure camera permission is granted and no other app is using the camera. Try Chrome or Firefox which have the broadest MediaRecorder support.
Playback has no audio
Check that your microphone is connected and its permission is granted. The MediaRecorder captures both video and audio tracks from the stream.