Video · Utility
Subtitle re-syncer.
Fix out-of-sync SRT or VTT subtitles by giving two correct reference points -- one near the start, one near the end -- and every line in between resyncs proportionally, not just by a flat time shift. Runs entirely in your browser. Free: up to 200 lines. Premium: unlimited.
Inputs
Result
Choose a file, enter two reference points, and press Resync.
How it works
- On-device: your file is parsed and rewritten in the browser and never uploaded to a server.
- Proportional, not flat: a flat time shift only fixes drift at one point in the file. Two reference points let every cue between and around them scale correctly, which is what actually fixes subtitles that drift out of sync over a long video (common after re-editing or a different frame rate).
- Formats: reads and writes both
.srtand.vtt.
Free vs Premium
Free resyncs files up to 200 subtitle lines. Premium removes the limit.