Repair small sync errors
Timing drift often appears after trimming intros, exporting clips, or changing frame rates.
Fix subtitle timing drift
Subtitle Time Shifter
Move every subtitle cue earlier or later when captions are slightly out of sync with the video.
0
captions
0
words
0:00
duration
Browser-only processing
SRT + VTT input
No account needed
Download .srt or .vtt
Subtitle Input
Output
Ready
Timeline Preview
Segment density and timing gaps
Workflow notes
How this page helps video creators
Preview before downloading
The timeline preview helps spot dense caption areas and obvious gaps before export.
How it works
A simple subtitle repair workflow
Paste your subtitle file
Drop in SRT or simple WebVTT text. Use the sample button if you want to test the controls first.
Run the focused action
Convert formats, shift timing, clean blocks, or create a translation prompt without leaving the page.
Review and export
Check caption count, duration, timeline density, then copy or download the result for your editor.
Format support
Built for common creator subtitle files
Privacy model
The current MVP processes pasted text in the browser. There is no server upload or account flow.
Supported input
Works best with SRT and simple WebVTT cues that contain standard timestamp lines.
Human review
Always check names, line length, timing, and cultural wording before publishing translated captions.
Known limits
Advanced VTT styling, positioning metadata, and badly corrupted timing may still need manual repair.
FAQ
Subtitle Time Shifter questions
How do I fix subtitles that appear too early?
Enter the offset in seconds and choose Later to move every timestamp forward.
How do I fix subtitles that appear too late?
Enter the offset in seconds and choose Earlier to move every timestamp backward.
Can I shift by milliseconds?
Yes. Use decimal seconds such as 0.25 for 250 milliseconds.