Subtitle Offset Fixer
Shift an SRT or VTT file's timing earlier or later — free, with no upload.
Paste subtitle content below, or drop a .srt/.vtt file
Negative shifts subtitles earlier, positive shifts them later.
How do I know how much to shift by?
Compare a line's subtitle timestamp to when it actually appears in the video — the difference (in seconds) is your offset. A positive number delays subtitles; a negative number moves them earlier.
Does this work for both SRT and VTT files?
Yes — the format is detected automatically from the file's content, and the output is saved in the same format.
Is my subtitle file uploaded anywhere?
No — the timing shift happens entirely on your device. The file is never sent to a server.