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Fix subtitle timing. In seconds.

Shift SRT subtitles earlier or later by a precise number of milliseconds. Preview and download locally.

✓ Free ✓ No sign-up ✓ Local browser processing

Shift subtitle timings

Upload an .srt file or paste its contents. Shift all cues earlier or later without changing captions.

Choose .srt fileSRT content

Shift (milliseconds)

Direction

Paste or upload subtitle data.

Malformed cues are not edited. Moving an early cue earlier than zero is blocked to avoid invalid negative timestamps. Always preview synchronized video after export.

Updated subtitles

Timings updated0

Time shift—

Output SRT

Your revised timestamps appear here.

Frequently asked questions

Does it translate subtitles?

No. It changes timestamps only and preserves subtitle text.

Can I shift subtitles backwards?

Yes, as long as the resulting start time is not negative.

Are video files required?

No, only the .srt subtitle text or file is needed.