✳ FREE · NO UPLOAD
Subtitle timing shifter
Move every cue by a fixed offset to fix captions that run consistently early or late. Works on SRT and VTT, and writes back in the same format.
Subtitle files are plain text, so this runs entirely in the page - no upload, no processing engine to load.
Worth knowing
- This fixes a constant offset. If captions drift progressively further out, the frame rate differs and a constant shift will not fix it.
- Negative offsets stop at zero rather than producing negative timestamps.