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Subtitle guide

When to use ASS instead of SRT

TL;DR — A practical guide to the situations where ASS is worth the extra complexity compared with plain SRT files.

Most subtitle workflows do not need ASS all the time.

Use SRT when

  • You want the simplest exchange format
  • You are uploading files to platforms that mainly expect standard captions
  • Styling is not part of the requirement

Use ASS when

  • Subtitle appearance matters
  • You need better control over subtitle layout
  • Your workflow includes styled subtitle editing before final export

A practical pattern

Many teams keep both:

  • ASS while editing
  • SRT or VTT while delivering

That keeps the workflow flexible without forcing styled files into every destination.

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