Convert to VTT

Convert any subtitle format to WebVTT (.vtt) format

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Supported formats: SRT, VTT, ASS, SSA, SBV, SUB, SMI

Universal Subtitle to VTT Converter

Convert any subtitle format to WebVTT (.vtt)—the HTML5 standard for web video subtitles. Whether you have SRT, ASS, SSA, SBV, SUB, or other formats, this converter transforms them into clean, web-ready VTT files that work perfectly in modern browsers and video players.

What is WebVTT?

WebVTT (Web Video Text Tracks) is the W3C-standardized subtitle format designed specifically for HTML5 <video> elements. Created in 2010, VTT supports not just subtitles, but also captions, descriptions, chapters, and metadata. It begins with a WEBVTT header and uses HH:MM:SS.mmm timestamps with period separators.

Supported Source Formats

SRT (SubRip)

Universal format with numbered entries and comma-separated timestamps. Most common subtitle format.

ASS/SSA (SubStation Alpha)

Advanced format with styling, positioning, and effects. Popular in anime subtitles.

SBV (YouTube)

YouTube's simple subtitle format with timestamps on separate lines.

SUB/IDX, TTML, and more

We support virtually all subtitle formats—just drop your file and convert!

Why Choose WebVTT?

HTML5 Native

VTT is built into the HTML5 <track> element. No plugins needed—works natively in Chrome, Firefox, Safari, Edge, and all modern browsers.

CSS Styling

Style your subtitles with CSS—control fonts, colors, backgrounds, positioning. VTT supports ::cue pseudo-element for advanced customization.

Accessibility

VTT supports captions, descriptions, chapters, and metadata—perfect for WCAG compliance and accessibility requirements. Screen readers love VTT.

When to Use VTT Format

Website Video Players

Embedding video on your website with HTML5 <video>? VTT is the official standard and provides the best browser integration and user experience.

Vimeo & Modern Platforms

Vimeo, Dailymotion, and many streaming platforms prefer VTT for subtitle uploads. It's the modern web standard that these platforms are optimized for.

E-Learning & Courses

Online course platforms (Moodle, Coursera, Udemy) use VTT for video lessons. VTT's chapter support makes it perfect for navigable educational content.

Custom Styled Subtitles

Need branded subtitles with specific colors, fonts, or positioning? VTT supports CSS styling, letting you match your brand guidelines or create high-contrast accessible captions.

💡 Conversion Tips

The converter automatically handles all timestamp formats—no matter what source format you use, the VTT output will be perfect.

Converting from ASS? Styling will be removed, but you can add new CSS styling to the VTT file after conversion.

All subtitle text and timing are preserved with millisecond accuracy—lossless conversion for dialogue content.

Batch convert multiple files at once—perfect for converting entire series or multi-language subtitle sets.

Frequently Asked Questions

WebVTT (Web Video Text Tracks) is the W3C standard for displaying subtitles in HTML5 video players. It's the native subtitle format for web browsers and supports styling, positioning, and accessibility features.
Use VTT when embedding videos on websites with HTML5 <video> elements, uploading to platforms that prefer VTT (like Vimeo), or when you need CSS styling for your subtitles. VTT is the modern web standard.
Yes! VTT supports CSS styling through the ::cue pseudo-element. You can customize fonts, colors, backgrounds, and positioning. This makes VTT ideal for branded video content.
The main differences are: VTT starts with a 'WEBVTT' header, uses periods in timestamps (00:00:00.000 vs 00:00:00,000), supports CSS styling and positioning, and is the native format for HTML5 video.
Add a <track> element inside your <video> tag: <track src="subtitles.vtt" kind="subtitles" srclang="en" label="English">. The browser will handle display automatically.