sbv
What is a .sbv file?
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SBV (.sbv) is the simple caption format used by YouTube's Studio. Each cue is a start,end timestamp line (H:MM:SS.mmm) followed by the caption text, with a blank line between cues. It has no styling — just timings and text.
How to use a .sbv file
Use an example .sbv file to test caption parsers, YouTube caption import, and conversion between SBV, SRT, and VTT.