Text tools
Subtitle converter and time shift
Convert plain SRT and WebVTT cues and shift every timestamp.
Processed locally
Plain text cues only; no media files. VTT identifiers, settings, metadata, markup and entities are rejected. Up to 10,000 cues and 1,000,000 characters.
Your answer will appear here.
Help and method
Use SRT numbered cues or a WEBVTT header and unnumbered cues. Shift in whole milliseconds; negative shifts move cues earlier. Times must remain between 00:00:00.000 and 99:59:59.999, with end after start.
Methods and reliabilityWorked example
An example you can try or adapt to your own values.
- Source format
- SRT
- Target format
- WebVTT
- Input
- 1 00:00:01,000 --> 00:00:02,000 α
- Shift in milliseconds
- 500
Result
WEBVTT 00:00:01.500 --> 00:00:02.500 α