How the recording works
Your browser has a built-in recorder called MediaRecorder. It takes the live stream from your camera, encodes it, and hands back a data object held in memory. Pressing download writes that object to your device using the browser's normal download mechanism.
At no point does the clip touch a network. There is no upload step, no temporary server copy and no processing queue. If you reload the page before downloading, the recording is gone for good, because memory is the only place it ever existed.
Download before you close the tab. There is no autosave and no recovery. Once the tab is closed or reloaded, an undownloaded clip cannot be retrieved.
Getting a usable take
- Check your framing first with the preview. Eyes about a third of the way down, camera at eye level.
- Light from the front. A window behind you will silhouette you, and drops your frame rate as well. The frame rate reading is a good objective check: if it is well under 30, the room is too dark.
- Wear headphones if you are recording audio near speakers, to avoid feedback.
- Pause before and after speaking. A second of silence at each end makes trimming far easier.
Format notes
If recording fails to start at all, the camera is probably held by another application. Chrome, Edge and Firefox produce WebM, usually with VP9 video and Opus audio. That plays in any modern browser and imports into DaVinci Resolve, Premiere, Shotcut and Kdenlive without conversion. Safari produces MP4 instead. The readout shows which your browser selected.
If you need MP4 from a browser that produced WebM, any free converter will do it, or you can simply drop the file into a video editor and export.
When to use something else
This is built for short takes: a quick message, a bug reproduction, a test of your camera setup. For anything long or complex, use OBS Studio or your operating system's built-in recorder. Those write directly to disk as they go rather than holding everything in memory, so they handle long sessions and offer scene switching, multiple sources and better compression.
Other checks
Common questions
Where is the recording stored?
In your browser's memory only, until you press download. Nothing is sent to a server at any point. Closing or reloading the tab discards it permanently.
What format do I get?
WebM in Chrome, Edge and Firefox, which every modern browser and most editors can open. Safari produces MP4. The readout shows which format your browser chose.
How long can I record?
There is no fixed limit, but the clip is held in memory, so very long recordings will eventually exhaust it. For anything beyond a few minutes, use desktop recording software.
Can I record audio too?
Yes, tick the audio option before starting. Your browser will ask for microphone permission separately from camera permission.
Why is my file large?
Browser recording uses a fixed quality target rather than compressing for size. A minute of 720p video is typically a few megabytes. Re-encoding in a video editor will shrink it considerably.