Subtitle Shifter — Free & Online
Subtitles showing too early or too late? Shift every cue by a constant offset — milliseconds to minutes — and download the fixed file.
How to use the Subtitle Shifter
- Choose your subtitle file. Select the .srt, .vtt or .ass file that is out of sync.
- Set the shift amount. Enter how many seconds to delay or advance the subtitles.
- Download fixed file. The resynced file downloads immediately as SRT.
Frequently Asked Questions
My subtitles show 2 seconds too early — what do I enter?
Choose "Later", enter 2 seconds. Every cue moves forward by that amount.
What if the delay grows over the movie?
That is drift caused by a framerate mismatch — use our Subtitle Sync Fixer with two anchor points instead of a constant shift.