Partial Subtitle Shifter
Apply different timing shifts to specific time ranges inside subtitle files.
Partial Subtitle Shifter
Apply different timing shifts to specific time ranges inside subtitle files.
| Output | Size | Actions |
|---|---|---|
| sample-partial-shifted.srt | 133 chars |
About this partial subtitle shifter
The partial subtitle shifter applies different timing adjustments to specific time ranges within a file, instead of moving everything by one amount. That makes it the tool for subtitles that start in sync but drift, or where an edit, recap, or missing scene threw one section off.
Shifting the whole file in those cases fixes one part and breaks another. By correcting ranges independently, you can pull a late stretch back without disturbing the cues that are already aligned. Preview across the file afterwards, since these problems often hide in more than one place.
Common uses
- Fix a subtitle file where only one section has drifted out of sync.
- Correct timing after an edit, recap, or removed scene shifted part of the track.
- Apply different offsets to different stretches of a single subtitle file.
Helpful tips
- Find where the sync breaks first, then shift only the affected range.
- Work one range at a time and preview before moving to the next.
- Keep the original file, since partial edits are easy to overshoot.
How to use Partial Subtitle Shifter
- Upload or paste the subtitle file you want to handle with Partial Subtitle Shifter.
- Confirm the source format, cue order, encoding, and timing style before making changes.
- Run the conversion, cleanup, timing shift, merge, or edit action with a small timing check in mind.
- Preview captions near the beginning, middle, and end of the video to catch drift or formatting issues.
- Export the subtitle file in the format your video editor, player, or publishing platform expects.
Frequently asked questions
When should I use partial shifting instead of a normal shift?
Use it when only part of the file is out of sync, or when the drift grows over time, so different sections need different adjustments.
Can I shift several ranges in one file?
Yes. You can apply separate timing changes to different time ranges, which is the whole point of partial shifting.
Is Partial Subtitle Shifter free, and does it work on mobile?
Yes. Partial Subtitle Shifter is free to use on JustBloc with no account or installation, and the page is designed to work on desktop, tablet, and mobile browsers.