Fix Frame-Rate Subtitle Drift

Correct subtitles that slowly drift out of sync over time.

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SRT, VTT, SBV, LRC, ASS, SSA, TXT nessun limite di dimensione file

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Subtitle text

Time shift (seconds)0s

Positive delays the subtitles (use if they appear too early); negative advances them (if they lag the audio).

Speed factor (for frame-rate mismatches)

💡 Fixes subtitles that are out of sync — shift everything earlier or later, and correct frame-rate mismatches with the speed factor. The format is detected and preserved. Everything runs in your browser.

frame rate tips

🎞️

If subtitles drift further off as the video plays, it's usually a frame-rate mismatch — use the speed factor (e.g. 23.976→25).

🔧

Combine a speed factor with a small offset to nail both the drift and the start point.

📐

Common conversions are provided as one-click buttons.

🔒

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Come funziona

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Perché il nostro?

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Also check out…

⏩

Fix Subtitles That Appear Too Early

Delay subtitles so they line up with later audio.

⏪

Fix Subtitles That Lag the Audio

Advance subtitles that appear after the dialogue.

✂️

Resync Subtitles for a Different Cut

Shift subtitles to match a version with a differen

🔤

Resync SRT, VTT, or ASS Subtitles

Shift timing in whatever subtitle format you have.

Domande frequenti

Back to Subtitle Shifter / Resync