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Word-by-Word Highlight Captions: How They Work and How to Make Them

28 October 2026 · 6 min read · CaptionFy team

Highlight captions — where each word lights up as it is spoken — are one of the most recognisable looks in short-form video. They look complex, but with word-level timing they are easy to make.

Why they hold attention

A moving highlight gives the eye something to follow. Viewers read along with the speaker, which keeps them engaged through the line.

What makes them possible

Highlights need the exact start time of every word. Doing that by hand means placing hundreds of keyframes. Auto-captioning with word-level timing does it automatically.

Making them in CaptionFy

Generate captions, choose a style with a highlight or reveal effect, and adjust the reveal smoothness. You can recolour or resize individual words to emphasise them further.

Do not overdo it

One highlight colour and one animation per video is plenty. Too many effects make captions harder to read.

The short version

Word-level timing turns highlight captions into a one-click effect. Keep the colours restrained.

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