Record the window, not the screen.
PiPCapture records the floating Picture-in-Picture panel your browser puts on top of everything else — and nothing else. Not the desktop behind it, not your tabs, not the notification that arrives halfway through.
Three moves, and two of them are one keystroke.
Pick the window
PiPCapture lists the open windows and flags the ones that look like Picture-in-Picture panels, so the right one is usually already at the top. The macOS window picker is there if you would rather point at it yourself.
Press record, or the hotkey
One global shortcut starts and stops from any app, so you never have to leave the video. It needs no Accessibility permission. Elapsed time, file size and a live audio meter sit in the menu bar while it runs.
Get an .mp4
Timestamped files land in a folder you choose. If the window closes mid-recording the movie is closed properly rather than left half-written, so what you have is always playable.
A recorder the size of the thing you are recording.
Two limits, stated up front. PiPCapture captures through Apple's ScreenCaptureKit, so the system's content protection applies: DRM-protected video is excluded by macOS and records as a black frame. And recording quality is capped by the stream the browser is playing — set the player to its best quality first.
PiPCapture is for lectures and webinars you are entitled to keep, calls you have permission to record, demos and bug reports, and your own uploads checked back at full size.