How to Add Captions to a Screen Recording on Mac

A caption turns a silent recording into a self-explanatory one — it names the step, points out the result, and holds up when the viewer watches with the sound off. Here's how to add captions to a screen recording on macOS, start to finish.

What the built-in tools can — and can't — do

The macOS screen recorder (Shift + Cmd + 5) and QuickTime capture the screen, but neither can put text on the video. QuickTime's editing stops at trimming, so captioning means importing the file into a second app — iMovie's title presets, or a full video editor — and losing the "record, annotate, share" flow. A recorder with captions built in skips the handoff; that's the approach below.

Step by step in ScreenTailor

  1. Open your recording. Record your screen in ScreenTailor, or open an existing recording.
  2. Add a caption on the timeline at the moment it should appear, and set how long it stays up.
  3. Type the text — multi-line is fine — and drag it where it belongs: a lower-third for narration, a center title for the intro, a small label next to the thing you're pointing at.
  4. Style it once. Font, size, colors, shadow or background — then save it as a preset and apply it to every other caption with one click.
  5. Animate and export. Give it a pop, typewriter or zoom entrance if it should draw the eye, preview live, and export a share-ready MP4.
Captions live on the timeline — they appear and disappear exactly when you choose.

Make them readable

  • Separate text from footage — a shadow, stroke or background block keeps captions legible over any UI.
  • Short lines, long enough on screen — a caption should be readable twice before it disappears.
  • One style per video — presets keep every caption consistent, so the video reads as designed rather than assembled.

When words are too many: stamps

Some callouts don't need a sentence. A 👆 next to the button, a ✅ on the finished step, a ⚠️ on the gotcha — emoji stamps sit on the timeline just like text captions. See everything captions can do on the captions feature page.

Caption your next recording

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New to recording on macOS? Start with how to screen record on a Mac, or make the recording itself clearer with zoom.

Frequently asked questions

Can you add text to a screen recording on a Mac?

Not with the built-in tools — the Shift + Cmd + 5 recorder and QuickTime capture the screen but can't overlay text. You add captions in an editor afterwards; in ScreenTailor the recorder and the caption editor are the same app.

Are the captions generated automatically from the audio?

In ScreenTailor, no — captions are text you type, placed on the timeline. That's a feature for tutorials: no transcription errors, exact wording, and captions that work on silent recordings, titles and calls to action.

How do I keep captions readable over busy footage?

Use a caption style with a shadow, stroke or background block so the text separates from whatever is behind it, keep lines short, and leave each caption up long enough to read twice. Saving the style as a preset keeps every caption consistent.