Is my recording uploaded anywhere while I record?

No. MediaRecorder writes the video to memory in your browser, and the Trust Meter confirms zero bytes are sent over the network for the entire session.

What format does the download come in?

WebM by default, since that's what MediaRecorder produces natively in most browsers. Some browsers can export MP4 directly.

Can I record just a browser tab and not my whole desktop?

Yes — when you click Start, the browser's own picker lets you choose a tab, a window, or the entire screen.

No. 01

Screen Recorder

Record your screen, a window, or a tab with mic and webcam bubble — saved straight to your device, never uploaded.

Your browser doesn't support screen capture (getDisplayMedia). Screen recording generally isn't available on mobile browsers — try Chrome, Edge, or Firefox on desktop, or use your device's built-in screen recorder.

Uploaded 0 bytes (network monitor unsupported in this browser)

How your data is handled: everything above runs inside this browser tab; your file is never uploaded.

Most screen recorders want you to install software or sign up before you can record a five-second clip. This one uses your browser’s own screen-capture APIs — click Start, pick what to share, and the file saves to your device the moment you stop.

How to use it

Click Start and choose what to share: full screen, a window, or a browser tab.
Toggle the microphone and webcam bubble on or off before you begin.
Recording starts immediately — the REC light and elapsed-time readout confirm it's live.
Click Stop and the recording downloads directly to your device as a video file.

Tips & edge cases

Sharing a single tab (not the whole screen) usually gives smoother capture and a smaller file, since the browser only has to composite one surface.
The webcam bubble is drawn into the same recording — there's nothing to sync afterward, unlike overlaying a separate camera file in an editor.
If system audio isn't being captured, check that you enabled 'Share tab audio' or 'Share system audio' in the browser's own share picker — that's a browser permission, not a setting on this page.

FAQ

Is my recording uploaded anywhere while I record?: No. MediaRecorder writes the video to memory in your browser, and the Trust Meter confirms zero bytes are sent over the network for the entire session.
What format does the download come in?: WebM by default, since that's what MediaRecorder produces natively in most browsers. Some browsers can export MP4 directly.
Can I record just a browser tab and not my whole desktop?: Yes — when you click Start, the browser's own picker lets you choose a tab, a window, or the entire screen.