Free · No signup · Nothing uploaded
Subtitle timing editor
Make out-of-sync subtitles match your video: shift them, stretch them, or fix frame-rate drift.
Subtitle Timing Editor: free, private and right in your browser
Make out-of-sync subtitles match your video: shift them, stretch them, or fix frame-rate drift.
- Shift all lines earlier or later
- Two-point sync fixes drift
- Frame-rate conversion (23.976, 25, 30…)
- Remove overlaps
- SRT or VTT output
How to use the subtitle timing editor
REC 00:42Step 01Open subtitles
Choose an SRT or VTT file.
Step 02Fix the timing
Shift by seconds, sync the first and last lines to the right times, or convert frame rates.
MOV → MP4Step 03Download
Save as SRT or VTT.
Subtitles always late
Shift every line by a fixed amount.
Subtitles drift over time
Sync the first and last line; everything in between follows.
PAL / NTSC versions
Convert subtitles made for 25 fps to 23.976 fps.
Frequently asked questions
Is my video or audio uploaded?
No. Speech recognition and every edit run in your browser on your own device. Nothing is sent to a server.
How do I know which fix I need?
If every line is off by the same amount, use Shift. If they are fine at the start but wrong at the end, use two-point sync or frame-rate conversion.
Can I shift only part of the subtitles?
This tool shifts all lines. Use the Subtitle Editor to change single lines.
Is anything uploaded?
No. The file is read and changed in your browser.
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