• Captioned video is accessible to people who can't hear it.
  • Captions make video full-text searchable.
  • Captions can be automatically translated to other languages during playback.
  • Captions can be used to generate an interactive transcript.

Example YouTube Video with Captions

Screen shot of a YouTube video with captions turned on, plus a menu showing the option to translate captions into other languages

Free Tools for Captioning

See also YouTube Caption Tools Part 2 for Terrill Thompson's review of several free tools.

A Few Commercial Tools & Services for Captioning