Made for drift
A gradual fix, not a plain shift.
Subtitle Sync Fixer
Fix subtitles that gradually drift out of sync, using two reference times.
- Fix drifting subtitles online
- Two reference times
- Free — no signup
Upload your subtitlesSRT / VTT
Drop your subtitle file here
Fix subtitles that drift out of sync as the video plays.
Are all subtitles early or late by the same amount? Use SRT Timing Adjuster.
Two reference times
One near the start, one near the end.
SRT and VTT
Your file keeps its own format.
Check before you save
Preview the correction first.
Frequently asked questions
What does “two reference times” mean?
You pick one subtitle near the start and one near the end, and give the time each should appear. The tool stretches the timing between those two points so subtitles that gradually drift are pulled back into sync.
My subtitles are off by the same amount everywhere. Is this the right tool?
No — that is a simple shift; use the SRT Timing Adjuster. This fixer is for drift that grows over time.
Is it free?
Yes — free, with no signup needed.