ToolJovia
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Plain Subtitle Workbench

Inspect, shift and convert a bounded plain SRT/WebVTT cue profile without loading media.

✓ Browser-local processing
Processed in this tab. Up to 100,000 characters unless this tool states a smaller limit.

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How to use Plain Subtitle Workbench

Adjust explicit cue times and serialize a separate subtitle file. Cue payload text remains source data and no markup or video is mounted in the browser.

  1. Enter input, time shift in whole milliseconds.
  2. Choose the settings for plain subtitle workbench, then run the tool.
  3. Review the result and any limitations before copying or downloading it.

Good to know

  • 100,000 characters,5000 cues,millisecond timing and a±one-day shift. No implicit sorting or overlapping-cue repair.
  • Limited cue-only SRT/WebVTT profile: HH:MM:SS times, no settings/NOTE/STYLE/REGION/header metadata. SRT output replaces cue IDs with sequential numbers; payload source text is retained.
  • Processing is local. Output is limited to 1,000,000 text characters unless a stricter file limit is stated.

Common questions

Does shifting change cue duration?

No. The same offset is added to both endpoints; a negative or oversized resulting timestamp is refused.

Is this input sent to a server?

No. The application processes this input inside your browser tab and does not save it to persistent storage.

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