Free Subtitle Timing Shifter
This free subtitle timing shifter moves every timestamp in an SRT or VTT file forward or back by the number of seconds you choose, fixing captions that run ahead of or behind the audio. Paste your file, set the offset, and download the re-timed result. It all happens in your browser with no upload and no sign-up.
A positive value delays captions (use when they appear too early). A negative value makes them appear sooner (use when they lag the audio).
How to use it
- 1
Paste your SRT or VTT
Paste your subtitle file into the box, or open it from your device. The tool reads both SRT and WebVTT timestamps.
- 2
Set the time offset
Enter how many seconds to shift, using a positive number to delay captions or a negative number to make them appear earlier. Decimals like 1.5 are supported.
- 3
Shift and download
Every cue moves by the same offset instantly. Copy the result or download the re-timed file, ready to load back into your player.
- 4
Still out of sync?
If the drift grows over time rather than staying constant, the source frame rate likely differs. Re-export the captions from LiteScribe for a clean, correctly timed transcript.
Frequently Asked Questions
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