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Fix Subtitles That Lag the Audio

Advance subtitles that appear after the dialogue.

No cal iniciar sessióEls fitxers es mantenen privats

Drop a subtitle file (or paste below)

SRT, VTT, SBV, LRC, ASS, SSA, TXT sense límit de mida de fitxer

Navegar pels fitxers
0s

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

💡 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

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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.

Com funciona

1
Triar fitxer
Drop your file into the tool above. It stays entirely on your device — nothing is sent to any server.
2
Processa
The tool processes your data instantly in your browser using JavaScript. No server, no waiting.
3
Descarrega
Get your result instantly. Nothing is stored after you leave the page — complete privacy.

Per què usar la nostra?

✓Completament gratuït — sense costos ocults, mai
✓No cal compte, correu electrònic ni inici de sessió
✓Els fitxers no surten mai del teu dispositiu
✓Sense cap límit de mida de fitxer
✓Sense marques d'aigua en cap sortida

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.

Preguntes freqüents

Back to Subtitle Shifter / Resync