⏱️

Fix Subtitles That Appear Too Early

Delay subtitles so they line up with later audio.

Sin necesidad de registroLos archivos permanecen privados

Drop a subtitle file (or paste below)

SRT, VTT, SBV, LRC, ASS, SSA, TXT sin límite de tamaño de archivo

Explorar archivos
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

If captions show before the line is spoken, add a positive shift (e.g. +2s) to delay them.

🎯

Check the "first cue" preview to dial in the exact offset before downloading.

🔁

Fine-tune with the small presets (±0.5s) once you're close.

🔒

Processed in your browser — never uploaded.

Cómo funciona

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

¿Por qué usar el nuestro?

Completamente gratis — sin costes ocultos, nunca
Sin cuenta, correo ni registro requerido
Los archivos nunca salen de tu dispositivo
Sin límite de tamaño de archivo en absoluto
Sin marcas de agua en ningún resultado

Also check out…

Preguntas frecuentes