twineconvert

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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