Subtitle Sync Shifter

Fix subtitles that appear too early or late: shift every line by seconds or fix a frame-rate drift, then download SRT or VTT. Free tool.

Drop an .srt or .vtt file

SRT, VTT

+1.5 = show 1.5 s later · −2 = 2 s earlier · also 00:00:01,250 or 800ms

Frame-rate fix

How to use Subtitle Sync Shifter

  1. Drop the subtitle file.
  2. Enter how much to move it: +2 shows subtitles 2 seconds later, −1.5 earlier.
  3. If subtitles drift more and more, use the frame-rate fix. Download.

Good to know

  • Runs in your browser; nothing is uploaded.

Privacy

Runs entirely in your browser. Nothing you enter or open here is uploaded.

Questions

How do I find the right offset?

Note when a line is spoken in the video and when it appears. The difference is your offset.

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