Where this tool helps
Useful when subtitles appear earlier or later than dialogue, or a player needs WebVTT instead of SRT.
VIDEO TOOLS / FREE ONLINE TOOL
Subtitle Timing Editor
Shift SRT or WebVTT caption timing, convert between formats and preview subtitles on a local video.
✓ Browser only✓ No signup✓ Copy or download
Privacy and limitations
This adjusts caption files, not the original video. Captions must use valid hours:minutes:seconds.milliseconds times.
How to use Subtitle Timing Editor
- Paste SRT or WebVTT caption blocks.
- Enter a positive or negative offset in seconds and choose an output format.
- Optionally select a video for a local preview; download the converted caption file.
What to know before you start
This adjusts caption files, not the original video. Captions must use valid hours:minutes:seconds.milliseconds times.