VTT Converter

TTML to VTT Converter

Convert Timed Text Markup Language (TTML) subtitle files to WebVTT format for web video players. Preserves timing and basic text while simplifying advanced styling.

Input (TTML)
Paste your TTML content or upload a file

Drag and drop your TTML file here, or click to select

Output (VTT)
Your converted VTT subtitle file
TTML (Timed Text Markup Language) Format
W3C standard XML-based format for timed text with advanced styling and layout capabilities.
  • XML-based structure
  • Advanced styling with CSS
  • Precise layout control
  • Multiple language support
  • Broadcasting industry standard
VTT (WebVTT) Format
Modern web standard for HTML5 video subtitles with good styling support for web platforms.
  • Native HTML5 video support
  • CSS styling capabilities
  • Basic positioning control
  • Voice annotations support
  • Web browser compatibility

Note: Lossy Conversion

Converting from TTML to VTT may be lossy. Advanced TTML features like complex styling, regions, animations, and precise layout controls will be simplified or removed. Only basic text content and timing information is preserved.

Why Convert TTML to VTT?

Web Browser Compatibility

While TTML is powerful, most web browsers don't natively support TTML. Converting to VTT ensures your subtitles work with HTML5 video players and streaming platforms.

Streaming Platform Support

Many online video platforms and CDNs prefer VTT over TTML for web delivery. Converting enables broader compatibility with streaming services.

Mobile Device Support

Mobile browsers and video apps typically have better VTT support than TTML. Converting ensures your content works across smartphones and tablets.

Simplified Workflow

VTT's simpler format makes it easier to edit, validate, and integrate into web-based video workflows and content management systems.

TTML Format Overview

Broadcasting Standard

TTML is widely used in the broadcasting industry for professional subtitle delivery, offering precise control over text appearance and timing.

XML Structure

As an XML format, TTML provides a structured approach to timed text with clear separation of content, styling, and layout information.

What Gets Converted

✓ Preserved Elements

  • • Text content and dialogue
  • • Precise timing information
  • • Basic line breaks and structure
  • • Chronological order
  • • Multiple language tracks

✗ Lost Elements

  • • Advanced CSS styling
  • • Complex layout and regions
  • • Animations and transitions
  • • Precise positioning controls
  • • Custom fonts and colors
  • • Metadata and annotations