Fix Subtitles That Lag the Audio

Advance subtitles that appear after the dialogue.

Giriş tələb olunmurFayllar şəxsi qalır

Drop a subtitle file (or paste below)

SRT, VTT, SBV, LRC, ASS, SSA, TXT fayl ölçüsü limiti yoxdur

Fayllara baxın

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.

subtitles tips

⏪

If captions trail the speech, use a negative shift (e.g. −2s) to bring them earlier.

🎯

Find the delay by noting when a line is said vs when the caption appears, then shift by that amount.

🧪

Timings are clamped so nothing goes below 0:00.

🔒

Runs locally in your browser.

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Fayl Seçin

Drop your file into the tool above. It stays entirely on your device — nothing is sent to any server.

Emal et

The tool processes your data instantly in your browser using JavaScript. No server, no waiting.

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Get your result instantly. Nothing is stored after you leave the page — complete privacy.

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Also check out…

⏩

Fix Subtitles That Appear Too Early

Delay subtitles so they line up with later audio.

🎞️

Fix Frame-Rate Subtitle Drift

Correct subtitles that slowly drift out of sync ov

✂️

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.

Tez-tez Verilən Suallar

Back to Subtitle Shifter / Resync