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Word-by-word highlight captions, TikTok style v1.0.0

Use this resource to add animated word-by-word captions to a video

New

  • 600 downloads
  • 209 likes
  • 135 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install tiktok-highlight-captions

First time: connect the CLI with

npx --yes palatekit@latest login

The agent replaces the word list (text, start, end in seconds) with your video's transcript. Each word is highlighted with a red background while it is spoken. The component renders on a transparent background to overlay; a demo version on black helps preview it.

Mostly picked by

Updated November 2, 2026

Details

Works in
Install guides
Generates with
HyperFrames
Uses
  • HyperFrames (npm: hyperframes)
  • Node.js
  • FFmpeg (MP4 rendering)
Licence
Apache-2.0

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What you get

  • caption-highlight.html: the HyperFrames caption component (1920×1080, 8 s, transparent background)
  • demo.html: the same animation on black for previewing
  • A description file (registry-item.json)
  • A preview video and image

Good fit for

  • Dynamic captions for Reels, TikTok or Shorts
  • An educational video where every word should be followed
  • Making an interview readable without sound

Not for

  • Captions without word timings (start and end times are required)
  • Multi-language captions on one line
  • A discreet or cinematic caption style

Tags

  • captions
  • tiktok
  • word by word
  • highlight

About

You say

"Put word-by-word highlighted captions on my video, with the timed transcript below."

A white uppercase caption with a red background sweeping behind the active word.

Template published by HeyGen (HyperFrames) under the Apache-2.0 license.

Show more

Prerequisites

You bring
The word-timed transcript and Your video to caption
Dependencies
HyperFrames (npm: hyperframes), Node.js, and FFmpeg (MP4 rendering)

How to use it

  1. Add the component to your HyperFrames project.
  2. Provide the transcript with each word's start and end.
  3. Preview with demo.html, then render and overlay on your video.

Content preview

Files

  • caption-highlight.html8.1 KB
  • demo.html8.1 KB
  • LICENSE10.5 KB
  • NOTICE-PALATEKIT.md0.4 KB
  • README.md0.9 KB
  • registry-item.json0.7 KB

Origin and licence

Modified by PalateKit

Author
HeyGen (HyperFrames)
Source
github.com/heygen-com/hyperframes/tree/2c3d1e07fe63d4a2d67d63a3e29d4ad73e291d8e/registry/components/caption-highlight
Licence
Apache-2.0

Notice

Version modifiée de « Highlight » (HeyGen (HyperFrames), Apache-2.0) : traduction française et fiche par PalateKit.

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Frequently asked questions

Where do I get each word's timing?

From a transcription tool that outputs word-level timestamps; the agent can then fill the file's WORDS list.

Can I change the highlight color?

Yes: the red and the Montserrat font are set in the file's styles and can be replaced directly.