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MKVToolNixCCExtractor
Free

Free and open source under the GPL 2.0.

 Free

Free and open source under GPL-2.0.

Windows, macOS, Linux Windows, macOS, Linux, Command line
  • Adds, removes and retags tracks without re-encoding anything
  • Header editor for fixing default track flags and languages
  • Extracts captions, teletext and subtitles to standard formats
  • De facto open source standard for the task
  • Matroska output only
  • Cannot change the video or audio encoding at all
  • Command-line driven, no graphical interface by default
  • Niche tool aimed at caption workflows
Downloadable app Downloadable app
Open source Open source
License: GPL-2.0 License: GPL-2.0-only
No account needed No account needed
Works offline Works offline

Checked September 21, 2026

Checked October 2, 2026

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