Shift Subtitle Timing Online

Shift SRT/VTT subtitle timing online — delay or advance all cues by seconds, keep or change the output format. Free, instant, 100% in-browser.

Input · subtitle0 chars
Output · srt0 chars

🔒 100% private: this tool runs entirely in your browser. Your data is never uploaded, stored or logged anywhere.

How to subtitle shift

  1. Paste subtitles whose timing is off.
  2. Set seconds to delay (+) or advance (−) every cue — negative values clamp at 0.
  3. Download the resynced file in the same or a converted format.

FAQ

My subtitles show 2 seconds early — what value?

Enter +2 (delay). A negative value makes subtitles appear sooner.

Does it shift only part of the file?

Currently the whole file shifts uniformly. Per-cue resync between two sync points is on the roadmap.

Can I convert to VTT while shifting?

Yes — pick the output format in the dropdown.

Related tools