Merge two subtitle languages into one file

Combine two SRT or VTT files into bilingual subtitles. Choose language order, preview aligned lines and preserve unmatched text locally.

Preparing the local subtitle editor…

How to use this tool

  1. Import the top and bottom subtitle files
  2. Check that both match the same video edition
  3. Preview time alignment and export bilingual subtitles

What to know before processing

This tool stacks two languages, rather than joining consecutive parts of a movie.

One-to-many lines are segmented at time boundaries. Unmatched text is preserved.

Different video edits require timing correction or manual matching first.

Subtitle format example

1
00:00:01,000 --> 00:00:04,200
The coast reminds us to slow down.

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