Chaitanya P.
Managing Director"Master the Media with Maestra"
The best side of this product is auto subtitling. And most importantly, it supports multiple languages.
Read full reviewSync at a Glance
Shifting happens right on this page. No account, no app, no waiting.
Drop in the file with the timing problem. All 7 supported formats work, from SRT and VTT to broadcast formats like SCC.
Enter a positive number if the subtitles run early, a negative one if they run late, and download the resynced file. The shift applies to every line at once.
The same platform generates subtitles from any video, edits the text and styling, and translates the track into 125+ languages. Whatever the subtitles need next, it happens here.

Whether the subtitles run early or late, one offset brings the whole file back in sync.
Offsets, formats, and how syncing subtitles actually works.
Upload the subtitle file, enter how many seconds it runs early or late, and download the corrected version. The shift applies to the whole file at once, so a subtitle that was three seconds behind at the start is fixed everywhere.
The offset is the amount of time every subtitle moves. A positive value delays subtitles, useful when they appear too early, and a negative value pulls them forward, for when they lag behind the audio.
Play the video and pause on the first clearly spoken line. Compare the time it's spoken with the time the subtitle appears, and that difference is your offset. One test is usually enough, since the same gap applies to the whole file.
A single offset can't fix drift, that usually means the subtitles were made for a different frame rate or cut of the video. Open the file in the subtitle editor instead and retime the lines where the drift becomes noticeable.
Fully free, with no signup and no fee at any step. Upload, shift, and download on this page.
All 7 supported formats: SRT, VTT, TXT, SBV, plus the broadcast formats SCC, STL, and CAP. The shifted file downloads in the same format you uploaded.
VLC can shift subtitles during playback with the G and H keys, but the change disappears when you close the player, it never touches the file. To fix the file itself, permanently and for any player, shift it here.