You turn on Apple's Live Captions, start a screen share or a screenshot, and the caption box is gone — or replaced by a gray rectangle. It's not a bug. macOS hides the Live Captions window from screen capture on purpose, which is why the captions you were relying on often don't make it into a recording or a call.
Here's what's happening and, if you need captions that actually show up, what to do instead.
Key Takeaways
- Apple's built-in Live Captions are excluded from screen sharing and screenshots by design — a window-privacy behavior — so they frequently don't appear in recordings or shared screens.
- It's on-device and Apple-silicon only (macOS 13+), captions aren't saved, and accuracy varies.
- To keep captions in a recording or share, use captions that render as normal overlay windows (like Capnot) and record the full display.
What's actually happening
Apple's Live Captions is a built-in accessibility feature (System Settings → Accessibility → Live Captions). It transcribes audio to an on-screen overlay in near real time, entirely on-device, on Apple-silicon Macs running macOS 13 Ventura or later.
The catch shows up the moment you try to capture it. When you share your screen or take a screenshot, macOS blanks or grays out the Live Captions window. Mac users and reviewers consistently report the caption box appearing as a gray or black box in Zoom shares and in screenshots — an Apple Support Communities thread documents exactly this, and reviewers describe the same window being "covered up by a gray box" during screen sharing (retrieved 2026-08-27). It's the same window-exclusion mechanism macOS uses to keep protected content out of captures.
So do they show up in a screen recording?
Usually not. Because the same exclusion governs screen capture, the caption window is commonly blanked in recordings too — you think you captioned your demo, then play it back to an empty gray box where the captions should be.
There's an annoying nuance: a few capture paths can pull the window through (some Zoom screen-share modes with window filtering, for example), so the behavior isn't perfectly consistent. That's arguably worse — you can't count on it, which is the last thing you want when you're recording a tutorial you'll publish once.
Why Apple does this
It's a deliberate window-privacy behavior: macOS treats the system caption overlay like protected content and excludes it from capture. It isn't a setting you can toggle off, and Apple doesn't expose a "let captions appear in recordings" option. Combined with the fact that Live Captions don't save a transcript and aren't meant for high-stakes accuracy, the built-in feature is better for glancing at live audio than for producing a captioned recording.
How to keep captions in your recording
The fix is to use captions that render as ordinary overlay windows — ones without the system exclusion flag — so a normal screen recorder captures them like any other on-screen element.
That's exactly how Capnot works. Its Live Captions, subtitle bar, and cursor-anchored Bubble Chat are standard overlay windows, so they appear in a full-display recording or a screen share, in QuickTime, OBS, Loom, Zoom, Meet, or Teams. Like Apple's feature, the transcription runs on-device via macOS Speech Recognition — it just isn't hidden from capture.
Two practical rules either way:
- Record the full display, not a single window — window recording misses system-level overlays. See how to add live captions to a Mac screen recording for the exact recorder settings.
- Check a 10-second test clip before you record the real thing, so you catch a blanked caption box early.
If you only need to glance at live audio, Apple's Live Captions are fine. If the captions have to end up in your recording or on a shared screen, use an overlay built to be captured — that's the whole point of Capnot, $12.99 once. If you mainly want to read captions of your own meetings or videos instead, see Capnot vs NotchLive. For demos with no narration at all, see how to record a silent screen demo. Or start with the complete Mac screen captions guide.