Subtitle time shift · In your browser
Subtitle time shift
Move subtitles earlier or later by a precise offset, with an optional starting point for partial changes.
Drop a file here. Up to 5 MiB of UTF-8 text and 20,000 cues per file. Nothing is saved after reload.
How to use it
Your file, ready for its next step.
- Open your subtitles. Choose a file, paste SRT or VTT, or try the sample. No account needed.
- Choose your changes. Adjust the options and run the tool. Read any warnings before continuing.
- Check and download. Review the output and save a new file. Your original stays unchanged.
Worked example
Subtitle time shift, in practice.
Enter +2.5 to move a cue at 00:00:10,000 to 00:00:12,500. Enter -2.5 to move it earlier.
Before you download
Cues ending before zero are removed and reported. Starts crossing zero clamp to zero; words stay unchanged.
These tools work with existing SRT and WebVTT files. If you need captions from audio, open the video caption editor instead. Files are limited to 5 MiB and 20,000 cues per input. Results stay in this tab until you copy or download them.
Questions
A few useful answers.
Should I use a shift or drift correction?
Use a shift when the delay is constant. Use the frame-rate converter with two sync points when the delay grows over time.
Are my files private, and what are the limits?
Processing stays in this browser without an account. Each subtitle input is limited to 5 MiB of UTF-8 text and 20,000 cues. Session recording is disabled here. Closing or reloading the page clears your work.
From video to finished captions
Need the words first?
Generate captions, refine the timing and style your video in ClipSubtitles.