WebVTT Subtitle (.VTT)
WebVTT (Web Video Text Tracks) is the W3C standard subtitle and caption format designed for use with HTML5 video elements. It is based on SRT with additional features including CSS-based styling, cue positioning, vertical text support, and chapter markers. WebVTT is the only subtitle format natively supported by all modern web browsers for HTML5 video playback.
Advantages of WebVTT Subtitle
What the VTT format does well, and why you might choose it.
- W3C standard natively supported by all modern web browsers
- Supports CSS styling, positioning, and vertical text
- Includes metadata regions for accessible closed captioning
Limitations of WebVTT Subtitle
What the VTTformat doesn't do well, and when to choose another format.
- Not as widely supported by desktop media players as SRT
- Styling features are inconsistently implemented across browsers
- More complex than SRT for simple subtitle use cases
What VTT files are used for
- HTML5 web video subtitles and closed captions
- Streaming platform subtitle delivery (HLS and DASH)
- Accessible web video captions meeting WCAG guidelines
Convert to VTT
The most common formats people convert to VTT, ready to convert in seconds.
Convert VTT to other formats
Convert WebVTT Subtitle files into the format you actually need.
Frequently asked questions about VTT
What is a .VTT file?
WebVTT (Web Video Text Tracks) is the W3C standard subtitle and caption format designed for use with HTML5 video elements. It is based on SRT with additional features including CSS-based styling, cue positioning, vertical text support, and chapter markers. WebVTT is the only subtitle format natively supported by all modern web browsers for HTML5 video playback.
What is the MIME type of VTT?
The official MIME type for VTT files is text/vtt. This is the value web servers and applications use to identify the format when transferring files.
What category does VTT belong to?
VTT is a Subtitle Converter format. Files in this category share common conversion paths and use cases.
How do I open a .VTT file?
VTT files are typically opened by software that natively supports the WebVTT Subtitleformat. If you don't have a compatible application, the most reliable approach is to convert the file to a more universal format using the converters listed above. Most WebVTT Subtitle files convert to widely-supported alternatives in seconds.
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Convert VTT to SRT