WebVTT
Web Video Text Tracks — the W3C-standardized subtitle/caption format for the web, supporting styling and positioning that SRT lacks.
WebVTT is the modern web standard for video text tracks. It looks similar to SRT but uses dot-separated timestamps (HH:MM:SS.mmm) and supports styling cues, region positioning, and metadata that SRT can't represent.
WebVTT is the format used by HTML5 video's `<track>` element, so it's natively supported by every modern browser without polyfills. Streaming platforms increasingly use WebVTT internally even when accepting SRT uploads.
For live captioning platforms, WebVTT export is useful when target consumers need styled captions or when delivering to platforms that prefer the format (Vimeo, certain CDN-served HLS streams).