Are my files uploaded to a server?

No. This tool runs entirely in your browser — your files never leave your device, which makes it fast and completely private.

My subtitles are ahead of the audio — what do I enter?

If subtitles appear too early, enter a positive delay to push them later; if they're late, enter a negative value. Every timestamp is shifted by the same amount.

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Subtitle Shifter

Shift subtitle timing forward or back.

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How to use the Subtitle Shifter

1Drop or paste your .srt or .vtt subtitles.
2Enter how many seconds to shift (use a negative value to move earlier).
3Click Shift, then download the re-timed subtitles.

About the Subtitle Shifter

Free subtitle timing shifter — fix out-of-sync SRT or VTT subtitles by shifting every timestamp forward or backward by any amount. Runs in your browser, no upload, instant download.

Part of our Audio & Video collection. Browse all tools.

Frequently asked questions

Are my files uploaded to a server?: No. This tool runs entirely in your browser — your files never leave your device, which makes it fast and completely private.
My subtitles are ahead of the audio — what do I enter?: If subtitles appear too early, enter a positive delay to push them later; if they're late, enter a negative value. Every timestamp is shifted by the same amount.