Most people watch screen recordings with the sound off — on a phone, in an open office, in a Slack thread. Captions are how your demo, tutorial, or presentation still lands when no one can hear you. This guide covers everything about on-screen captions on a Mac: the types, why the built-in option often fails for recordings, the tools, and how to actually caption a demo.
It's the hub for our captions coverage — each section links to a deeper walkthrough.
Key Takeaways
- "Screen captions" on a Mac span live speech-to-text, typed captions, subtitle and dialogue bars, and cursor-anchored bubbles — different from post-production subtitles added in an editor.
- Apple's built-in Live Captions are hidden from screen sharing and screenshots by design, so they often don't appear in recordings.
- To caption a demo for viewers, use an overlay tool whose captions are captured normally (like Capnot) and record the full display.
Why put captions on your screen
The audience decides this for you. In an AP-NORC survey, about 1 in 3 US adults said they always or often use captions, many because they're in a noisy environment or the audio is poor (AP-NORC, Sept 2025, retrieved 2026-08-27). If your recording relies on narration, those viewers miss the point entirely.
Captions also beat writing the steps in a paragraph under the video: the words stay in the same frame as the action, so the viewer isn't reading in one place and watching in another. For the full argument, see why most people watch your screen demo with the sound off, and if you're weighing narration, silent demo vs voiceover demo.
What "screen captions" means on a Mac
The term covers a few different things:
- Live captions (speech-to-text) — you talk, and your words appear on screen in real time, transcribed on-device.
- Typed captions — you write the text yourself and place it on screen (useful when you don't want to narrate).
- Subtitle and dialogue bars — a caption panel at the bottom of the screen, sometimes with your name and photo.
- Cursor-anchored bubbles — a caption attached to your pointer, so the text sits next to whatever you're pointing at.
- Post-production subtitles — added afterward in a video editor. Accurate, but a separate step every time.
The first four happen live, on screen, as you record. The last one happens later, in an editor. This guide is mostly about the live kind, because it's faster and it's what most demos need.
The two ways to caption a Mac recording
There are really only two approaches:
- Post-production subtitles — record first, then add a subtitle track in Premiere, DaVinci Resolve, or CapCut. Precise and editable, but slow, and you re-render whenever the script changes.
- Live on-screen captions — put the captions on screen while you record, so they're part of the footage. No subtitle file, no syncing, no second pass.
For tutorials, product demos, and support videos, the live route wins on speed. The full walkthrough is in how to add live captions to a Mac screen recording.
Apple's built-in Live Captions (and why they vanish from recordings)
macOS has a built-in Live Captions feature (System Settings → Accessibility → Live Captions) that transcribes audio on-device on Apple-silicon Macs running macOS 13 or later. It's good for glancing at live audio.
The catch: macOS deliberately blanks the Live Captions window when you share your screen or take a screenshot — a window-privacy behavior — so the captions frequently don't make it into a recording or a call. You think you captioned your demo, then play it back to an empty gray box. The full explanation is in why Mac Live Captions disappear when you record or share your screen.
The fix is to use captions that render as ordinary overlay windows, so a normal recorder captures them like any other on-screen element.
Caption tools for Mac
A quick map of where the common tools fit:
- Capnot — an on-screen caption overlay built for demos and presentations: live captions, a subtitle/dialogue bar, and cursor-anchored Bubble Chat, plus annotation and pointer tools. Its captions are normal overlay windows, so they appear in a full-display recording. $12.99 one-time with a 7-day free trial.
- NotchLive — captions the audio you hear (meetings, videos) around the notch, with translation and saved transcripts. Built for reading captions yourself, not baking them into a demo. See Capnot vs NotchLive.
- Screen Studio — a screen recorder that can generate subtitles from a transcript after you record (not live captions).
For the broader landscape including annotation-first tools, see our roundup of Mac screen annotation and presentation tools. For live-caption apps specifically, see the best live caption apps for Mac.
How to caption a demo, step by step
The short version, using a live overlay:
- Plan for no audio. Decide what a viewer must understand at each step with the sound off — those are your caption points.
- Pick a caption style. A subtitle bar for running captions, a dialogue panel for a broadcaster look, or Bubble Chat to label what you're pointing at.
- Caption live. Type captions, or turn on Live Captions and talk — Capnot transcribes on-device via macOS Speech Recognition.
- Record the full display. Caption overlays are system-level windows, so window recording misses them. In QuickTime, OBS, or Loom, capture the whole display — see how to record a silent demo with QuickTime.
For a complete production workflow, see how to record a silent screen demo.
Tips for captions that land
- Keep each caption short — if it's a full sentence, it's probably two captions.
- Show the caption slightly before the action so the viewer knows what to look for.
- Don't caption everything — let the visuals carry the obvious steps; save captions for the moments that would confuse someone watching in silence.
Frequently asked questions
Does live captioning send my speech to the cloud?
Not with an on-device tool. Both Apple's Live Captions and Capnot transcribe on your Mac, so no audio is uploaded (Capnot FAQ).
Do on-screen captions show up in Zoom or Google Meet?
Yes, if the captions are a normal overlay and you share your full display — the captions appear on the shared screen and in any recording of it. (Apple's built-in Live Captions are the exception; they're hidden from sharing.)
What macOS version do I need?
On-device speech-to-text needs macOS 13 or later. Typed captions and annotation work regardless.
Captions are the cheapest way to make a screen recording work for the people watching on mute. If you want captions your viewers actually see in the recording, try Capnot free for 7 days, then $12.99 once — and start with how to add live captions to a Mac screen recording.