WebVTT Generator - Create VTT Subtitle Files for Video

WebVTT Generator

WebVTT Generator — Create VTT Subtitles Automatically

Stop manually timing captions frame by frame. Upload your audio and get perfectly synced WebVTT subtitles fast, ready for web video players and YouTube workflows.

WebVTT standard
YouTube compatible
HTML5 video ready
~30-40s transcription

What is a WebVTT File?

WebVTT (Web Video Text Tracks) is the modern standard for web video subtitles.

VTT Format Example

WEBVTT
00:00:12.340 --> 00:00:15.670
First line of lyrics
00:00:15.670 --> 00:00:18.900
Second line of lyrics

Each subtitle has a timestamp range and text content. VTT uses periods for milliseconds.

Where VTT Files Are Used

  • YouTube video subtitles
  • HTML5 video players (native support)
  • Vimeo, Wistia, and web platforms
  • Video editors (Premiere, DaVinci, etc.)

How to Create VTT Files

Generate perfectly timed WebVTT subtitles in three simple steps.

1. Upload Audio

Drop your MP3 file. Our AI analyzes the audio to detect speech and timing.

2. AI Generates Timestamps

AI transcribes and timestamps every word automatically. Review and fine-tune anything that needs adjusting.

3. Export VTT

Download your VTT file. Also export as SRT, LRC, or other formats if needed.

VTT vs Other Subtitle Formats

Choose the right format for your project.

FormatBest ForSupported
VTTWeb videos, YouTube, HTML5 players
SRTVideo editors, media players, legacy support
LRCMusic players, karaoke, streaming

What's the difference between VTT and SRT?

Both are subtitle formats with timestamps. VTT (WebVTT) is the modern web standard — it's what YouTube and HTML5 video players use natively. SRT is older but still widely supported by video editors and media players. LyricTime exports both, so you're covered either way.

What You Can Create

YouTube Captions

Upload VTT directly to YouTube for perfectly synced captions on your videos.

Web Video Players

VTT is the native format for HTML5 video — just add a track element to your player.

Vimeo & Wistia

Upload VTT captions to professional video hosting platforms.

Lyric Videos

Import VTT into video editors to create stylized lyric videos with perfect timing.

Accessibility

Add captions to make your content accessible to deaf and hard-of-hearing viewers.

Course Content

Create subtitles for educational videos and online courses.

Understanding WebVTT Format

WebVTT is more powerful than SRT—it supports styling, positioning, and metadata. Here's how it works:

VTT File Structure

/* Required header */
WEBVTT
/* Optional metadata */
Kind: captions
Language: en
/* Cue with optional identifier */
1
00:00:12.340 --> 00:00:15.670
First line of subtitles
2
00:00:15.670 --> 00:00:19.120
Second subtitle entry

Key Differences from SRT

  • Requires "WEBVTT" header as first line
  • Period for milliseconds (00:00:00.000)
  • Supports CSS styling inline and external
  • Positioning (align, position, line)
  • Cue identifiers are optional

VTT Styling Example

/* Style bold text red */
STYLE
::cue(b) { color: red; }
/* Position cue */
00:00:05.000 --> 00:00:08.000 line:0
<b>Styled</b> text here

Using VTT with HTML5 Video

VTT is the native subtitle format for HTML5 video. Adding captions to your web videos is straightforward.

Basic Implementation

<video
controls
src="your-video.mp4"
>
<track
kind="subtitles"
src="lyrics.vtt"
srclang="en"
label="English"
default
/>
</video>

kind attribute

Use "subtitles" for translations, "captions" for same-language + sound effects, or "metadata" for non-visible data.

default attribute

Add "default" to show captions automatically. Without it, users must manually enable them in the player.

Multiple languages

Add multiple track elements with different srclang values. Users can switch between them in supported players.

WebVTT FAQ

Common questions about creating and using VTT files.

Ready to Create Your VTT File?

Try the demo first, then process your own song with a paid minute option and export WebVTT.

Demo is free • Own-song uploads use paid minutes