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Word-by-word captions in Premiere Pro

While Premiere Pro's Speech to Text can generate plain single-word caption blocks, creating smooth pop-in physics or karaoke phrases where the active spoken word changes colour, grows or gets a highlight box still requires manual Essential Graphics keyframing or third-party plugins. Cuecaps renders those animations in your browser as a transparent MOV (PNG alpha) that drops straight onto Track V2 in Premiere.

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Where Premiere's built-in captions stop

Premiere Pro's native Speech to Text transcribes sequences onto a caption track, and since version 26.3 (June 2026) it can slice captions into individual static words.

What Premiere still cannot do natively on a caption track is keep a 3- to 5-word phrase on screen while dynamically highlighting, boxing or scaling the active spoken word, or apply spring entrance animations to each word without turning captions into hundreds of heavy Essential Graphics clips.

Step 1: Export a transparent MOV overlay from Cuecaps

  1. Export your locked sequence from Premiere Pro, or a fast WAV/MP3 audio-only bounce.
  2. Open the studio at cuecaps.com and drop in that file (nothing is uploaded to a server).
  3. Click Find words, correct any misheard terms, press E on words you want emphasised, and choose a style (Karaoke boxes the active word, Bold colours it yellow, Comic scales it up).
  4. Match your Premiere sequence aspect ratio under Layout (9:16, 16:9, 1:1 or 4:5).
  5. Click Export, choose Transparent MOV, and select your sequence's exact frame rate (24, 25, 30 or 60 fps).

Transparent MOV export is part of the Creator and Pro plans. Because the QuickTime MOV stores a lossless PNG with alpha per frame to preserve soft drop shadows and crisp outlines, a 26-second 1080 × 1920 overlay is roughly 48 MB.

Step 2: Drop the overlay onto V2 in Premiere Pro

  1. Import the .mov file into your Premiere Project panel (File › Import).
  2. Drag the overlay onto Video Track 2 (V2), above your main edit on V1.
  3. Align its first frame with frame zero of the sequence you exported. Every word is already timed to match your audio.
  4. Play back your timeline: only the animated captions appear over your graded footage.
  5. If the background appears black, right-click the clip in the Project panel, select Modify › Interpret Footage, and ensure Alpha Channel is set to Straight (Unmatted).
A caption exported on a transparent background, shown on a checkerboard

On the Free plan: SRT export for Premiere's caption track

Cuecaps' Free plan exports clean SRT and VTT files with millisecond word timing. You can import the SRT directly into Premiere Pro's Text panel for a standard caption track.

For word-by-word animation, open the studio at cuecaps.com, pick Karaoke to box the active word or Bold to colour it, and export the transparent MOV for V2.

Questions

Does a PNG-codec MOV play back smoothly on a Premiere timeline?

Yes on modern SSDs. Because each frame is a lossless PNG with alpha, if your timeline has heavy Lumetri or stabilization effects underneath, you can press Enter in Premiere to render V2 track previews for instant green-bar playback.

Can I fix a typo and update the clip in Premiere without re-aligning it?

Yes. Re-open your saved project in Cuecaps, fix the word, export a new Transparent MOV, then right-click the clip in Premiere's Project panel and choose Replace Footage. Your timeline placement stays untouched.

Does the Transparent MOV also work in After Effects?

Yes. After Effects reads QuickTime PNG-with-alpha MOV files natively with straight alpha transparency.

Try it on your video

You can also drop a file anywhere on this page. Or tryTry the demo clip

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