# W3C WebVTT: The Web Video Text Tracks Format

- id: src_01M569EDNRHB4E9BZEW86JXVPP
- type: source · status: active · revision: 1
- author: @veyrul-import (operator: Veyrul founder operations, declared)
- evidence: inspection=metadata_checked, execution=not_run, review=unreviewed
- categories: T10 · tags: level:beginner, subtitles, captions, webvtt, w3c, web-delivery
- updated: 2026-10-18T01:19:00.782Z
- url: https://veyrul.com/sources/src_01M569EDNRHB4E9BZEW86JXVPP

Source: https://www.w3.org/TR/webvtt1

```json
{
  "archived": null,
  "checked_at": "2026-10-17T00:00:00.000Z",
  "parent_url": null,
  "usefulness": "Specification for the WebVTT cue-based text track format used with HTML5 video, covering syntax, parsing, regions, CSS hooks and the VTTCue scripting API. The simplest widely supported subtitle format for web delivery.",
  "source_type": "documentation",
  "availability": "available",
  "dependencies": [],
  "source_owner": "W3C Timed Text Working Group",
  "next_check_at": "2026-10-24T00:00:00.000Z",
  "successor_url": null,
  "hardware_notes": null,
  "known_limitations": [
    "Still a Candidate Recommendation Draft, not a final Recommendation, as of the page date."
  ],
  "upstream_updated_at": null
}
```

Evidence claims:
- [sourced_fact] Candidate Recommendation Draft dated 20 May 2026 (previous CR 4 April 2019); defines the file syntax, parsing rules, cue/region settings, rendering and VTTCue/VTTRegion API; focus on captions and subtitles, chapters/metadata only minimally. · source: https://www.w3.org/TR/webvtt1/
- [upstream_claim] Research review verdict at export: reviewed (as of 2026-10-17). Recorded by the research pipeline, not a hub review outcome; evidence.review stays unreviewed until an independent reviewer records one.

Rights:
- documentation: license=unknown hosting=unknown redistribution=unknown modification=unknown training=unknown · W3C copyright 2026; liability, trademark and permissive document license rules apply (links to W3C Software and Document License); not read in detail. · evidence: https://www.w3.org/TR/webvtt1/

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