Format guide
WebVTT
Web Video Text Tracks
WebVTT is the W3C standard subtitle format for HTML5 video, used by every browser when you set `<track src="captions.vtt">` on a `<video>` element. Differs from SRT mainly in syntax (`.` decimal in timestamps, `WEBVTT` header, no cue numbers required) plus optional cue settings for position and style. YouTube, Vimeo, and modern OTT platforms all accept WebVTT.
How to open a WebVTT file
Any text editor. Browsers render WebVTT inline when attached to a video element. Subtitle Edit and other tools convert between WebVTT and SRT.
Primary use
HTML5 video captions and accessibility tracks.
Convert other formats to WebVTT
Convert WebVTT to other formats
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