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VTT Format Export

Export captions in WebVTT format - the HTML5 web standard.

About VTT Format

WebVTT (.vtt) is the HTML5 standard for captions:

  • Native browser support
  • Works with HTML5 <video> element
  • Compatible with modern web platforms
  • Similar to SRT but designed for web use

Exporting to VTT

To export your captions as VTT:

  1. Click the Export button in the caption editor
  2. Select "VTT" from the format list
  3. Choose whether to include speaker labels
  4. Click Export
  5. File downloads to your computer

VTT File Structure

Each caption segment includes:

  • A sequence number (optional)
  • Start time --> End time (HH:MM:SS.mmm format)
  • Caption text
  • Blank line separator

Example:

WEBVTT

1
00:00:00.000 --> 00:00:03.500
Hello and welcome to today's video

2
00:00:03.500 --> 00:00:07.200
We're going to talk about caption formats

VTT vs SRT

Key differences:

  • VTT uses periods in timestamps (00:00:01.500)
  • SRT uses commas in timestamps (00:00:01,500)
  • VTT starts with WEBVTT header
  • Both widely supported on web platforms

Using VTT Files

Common uses:

  • HTML5 video on websites
  • YouTube (accepts VTT)
  • Vimeo
  • Modern web platforms

Browser support: All modern browsers support WebVTT natively with the HTML5 <video> element.


VTT is the standard format for modern web video.

Next Steps


VTT is the best choice for modern web platforms!