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
- Open your recording. Record your screen in ScreenTailor, or open an existing recording.
- Add a caption on the timeline at the moment it should appear, and set how long it stays up.
- 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.
- 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.
- 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.
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.
One more reason to write captions as short instructions: they can become a written guide. With the captions in place, ScreenTailor generates a step per caption and exports the recording as a step-by-step PDF — see how to turn a screen recording into a step-by-step guide.
Caption your next recording
Every editing tool is free.
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.