How do I use VTT subtitles in HTML5 video?

After converting LRC to VTT, embed it in HTML5 video using: . The browser renders the subtitles natively via the track element.

Does the output VTT include cue settings for positioning?

No. The output uses plain cues and your player's default placement. You can add VTT cue settings manually if you need custom positioning.

How does VTT differ from SRT for lyric videos?

VTT supports cue settings (position, align, line), inline styling tags, and a WEBVTT header that SRT does not. VTT is native to web browsers and HTML5 video. SRT is more universally supported by desktop media players and smart TVs.

Can I style lyrics differently in VTT compared to SRT?

Yes. VTT supports inline tags like for italic, for bold, and for colored text. You can also use CSS with the ::cue pseudo-element to style all subtitles. SRT does not support any styling.

How do I embed VTT subtitles using JavaScript?

After converting LRC to VTT, you can load subtitles dynamically in JavaScript: const track = video.addTextTrack('subtitles', 'English', 'en'); track.mode = 'showing'; Alternatively, reference the VTT file in a element in your HTML.

Are VTT subtitles supported on mobile browsers?

Yes. All modern mobile browsers (Chrome for Android, Safari for iOS, Firefox Mobile) support VTT subtitles via the HTML5 element. Mobile video players also support VTT for local video playback.

Can I use VTT for Vimeo videos?

Yes. Vimeo accepts VTT files for caption uploads through its video settings panel. After converting LRC to VTT, upload the file through Vimeo's caption management interface.

Absolutely. All conversion happens client-side in your browser. No subtitle data is ever transmitted to a server.

What file extension does VTT use?

VTT files use the .vtt extension. The file must start with the text WEBVTT on the first line. The .vtt extension is recognized by all modern browsers, YouTube, Vimeo, and web video players.

How large are VTT files compared to LRC?

VTT files are slightly larger than LRC due to the WEBVTT header and arrow-separated timestamps. A 10 KB LRC file typically produces a 12-15 KB VTT file.

Can I batch convert multiple LRC files to VTT?

Yes. Drop several LRC files on this page and they open together in the workspace Batch tool with the VTT format pre-selected, converting every file at once. For converting whole folders at scale, use the Batch Converter page.

Does the converter handle enhanced LRC files?

No. Enhanced word-level timing is not interpreted and may remain in the lyric text. Use a standard LRC file with one timestamp at the start of each line.

Can I use VTT with Video.js or Plyr players?

Yes. Popular JavaScript video player libraries like Video.js, Plyr, and JW Player all support VTT subtitle files natively. Reference the VTT file in a element and the player library handles rendering.

What happens to the last lyric line in VTT?

Since LRC has no end times, the converter applies a default 3-second duration to the final cue. You can adjust this timing in any text editor since VTT is plain text and easily editable.

LRC to VTT Subtitle Converter

Convert your LRC lyrics to WebVTT subtitle format.

Drag & drop your LRC file here

or click to browse

Supports .lrc files up to 50 MB

Core Engine Architecture

About LRC to VTT

Turn synced lyrics into web-compatible subtitles. This tool reads each LRC [MM:SS.xx] timestamp tag and generates a WebVTT cue with a start time and an estimated end time, so lyrics created for music players can be used with HTML5 video, YouTube, Vimeo, and JavaScript players like Video.js and JW Player.

Payload & Syntax Inspector

LRC to VTT Code Syntax & Structure Inspection

Side-by-side code inspection illustrating header definitions, timestamp syntax, and cue payload formatting

Millisecond Sync

input.lrc

LRC SOURCE

[00:01.00]Hello, world!
[00:04.50]This is a subtitle file.
[00:08.50]Converted locally!

output.vtt

VTT RESULT

WEBVTT
 
00:00:01.000 --> 00:00:04.000
Hello, world!
 
00:00:04.500 --> 00:00:08.000
This is a subtitle file.
 
00:00:08.500 --> 00:00:12.000
Converted locally!

Specification Sheet

LRC vs VTT Technical Specifications

Standard Compliant

Input Format

LRC

LRC (.lrc) is a synchronized lyrics format for music players. Each line begins with a [MM:SS.xx] timestamp tag followed by the lyric text. It may include optional metadata tags like [ar:], [ti:], [al:], and [by:] for artist, title, album, and creator information.

Output Format

VTT

WebVTT (.vtt) is the W3C standard format for web video subtitles, used by HTML5 <track>, YouTube, Vimeo, and most streaming platforms. Cues use HH:MM:SS.mmm --> HH:MM:SS.mmm timestamps and begin with a WEBVTT header line.

Format Differences

LRC uses inline timestamps per line: [01:30.50]Lyric text. VTT uses a timestamp line with arrow separator: 00:01:30.500 --> 00:01:35.000 followed by text.

LRC timestamps are in [mm:ss.xx] format. VTT timestamps are in HH:MM:SS.mmm format with dot separators, including hours.

LRC has no end timestamps. VTT requires both start and end times with an arrow separator. The converter calculates end times automatically.

LRC has no mandatory header. VTT requires a WEBVTT header as the first line of the file.

LRC supports metadata tags ([ti:], [ar:], [al:]). VTT uses NOTE blocks for comments but has no song metadata system.

LRC has no positioning support. VTT supports cue settings like align:center, position:50%, line:center for on-screen text placement.

Conversion Troubleshooting & Gotchas

Practical solutions for player compatibility, character encoding, and timing synchronization

4 Common Gotchas

GOTCHA #1

How to display synchronized lyrics on an HTML5 `<audio>` player?

HTML5 `<audio>` supports child `<track kind='subtitles' srclang='en' src='lyrics.vtt'>` tags identically to `<video>`. You can use JavaScript (`audio.textTracks[0].oncuechange`) or modern web players like Plyr/Video.js to display synchronized karaoke text under your music player.

GOTCHA #2

Why does the browser console give a CORS error when loading the converted .vtt?

Web browsers enforce the Same-Origin Policy strictly on subtitle tracks. If your VTT file is stored on a CDN, S3, or third-party storage, the server must provide an `Access-Control-Allow-Origin: *` HTTP header, or the browser will block the lyrics.

GOTCHA #3

Long audio tracks (> 60 minutes) causing incorrect timestamps in WebVTT

LRC files express time above an hour as cumulative minutes (e.g. `[75:20.00]`), whereas WebVTT strictly requires hours and minutes (`01:15:20.000`). AllSubConverter correctly decomposes cumulative minutes into standard two-digit hours.

GOTCHA #4

Styling the converted lyrics in the browser using CSS

Unlike LRC which has no visual styling, WebVTT tracks can be customized via CSS pseudo-elements. For example: `video::cue, audio::cue { font-family: sans-serif; font-size: 1.2rem; color: #fff; background: rgba(0,0,0,0.7); }`.

Features

Automatically calculates end timestamps for each cue based on next line start time

Converts LRC [mm:ss.xx] timestamps to VTT dot-separated format (00:01:30.500 --> 00:01:35.000)

Generates valid VTT output with mandatory WEBVTT header

Writes plain cues that use your web player's default subtitle placement

Strips LRC metadata tags ([ti:], [ar:], [al:]) during conversion

Preserves all lyric text exactly as written in the source LRC

Reads repeated line-level timestamp tags and creates a cue for each tagged lyric

Browser-based processing, no file uploads, files stay on your device

Why Convert?

HTML5 web video players require VTT format (not LRC) for subtitle display via the <track> element in browsers.

YouTube and modern web platforms accept VTT subtitle uploads but do not accept LRC lyrics files.

VTT can carry more positioning and styling options than SRT when you customize the converted file for web video.

Web-based karaoke and lyric video platforms use VTT for subtitle rendering, requiring LRC-to-VTT conversion for audio lyric sources.

LRC files lack end timestamps, and converting to VTT allows setting cue duration based on next-line timing for proper web video display.

VTT supports cue settings (align, position, line) for later customization, while LRC has no positioning capabilities.

Streaming services that embed subtitles in web players use VTT, never LRC, for synchronized text display.

Scenarios

Common Use Cases

Web-Based Lyric Videos

Convert LRC synced lyrics to VTT for HTML5 web video players, enabling subtitle display in browser-based lyric and karaoke videos.

YouTube Lyric Videos

YouTube accepts VTT subtitle uploads. Convert LRC lyrics to VTT for lyric video uploads to YouTube with proper subtitle tracks.

Web Karaoke Platforms

Web-based karaoke platforms render subtitles using VTT. Convert LRC lyric timing to VTT for integration with online karaoke services.

Educational Web Video

Convert LRC files from language learning audio to VTT for web-based educational video versions with subtitle tracks.

Web Player Compatibility

Convert LRC lyrics to the browser-native VTT format for reliable display in HTML5 and JavaScript video players.

Format Ecosystem

Related Formats

VTT (WebVTT)

The output format — the W3C standard web video subtitle format used by YouTube, Vimeo, and HTML5 <track>. Convert LRC to VTT to turn lyrics into web-compatible subtitles.

LRC (Lyrics)

The input format — a synchronized lyrics format with [MM:SS.xx] timestamp tags used by music players like foobar2000, AIMP, Poweramp, and MiniLyrics.

SRT (SubRip)

The universal subtitle format. If you need subtitles for desktop video players instead of web players, convert LRC to SRT instead of LRC to VTT.

How It Works

1
Upload or drag your .lrc file into the converter.
2
The parser reads each [mm:ss.xx] timestamp and lyric text line.
3
LRC timestamps are converted to VTT format with dot separators (00:01:30.500).
4
For each cue, end time is calculated from the next line start (or default duration for last cue).
5
The WEBVTT header is prepended and each cue is written as plain VTT text.
6
Download the .vtt file ready for HTML5 video, YouTube, or web player integration.

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LRC SRT LRC TXT LRC ASS LRC TTML LRC SCC LRC STL LRC SMI

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Frequently Asked Questions

LRC files only have start timestamps. The converter sets each VTT cue's end time to the start time of the next line. For the final cue, a default 3-second duration is applied. This produces valid VTT with both begin and end times.

Yes. YouTube accepts VTT files through Creator Studio > Subtitles. After converting LRC to VTT, upload the .vtt file to YouTube's subtitle management interface and it will sync with your video.

LRC metadata tags ([ti:title], [ar:artist], [al:album]) are stripped during conversion since VTT has no song metadata system. Only timestamped lyric lines become VTT cues. The WEBVTT header is added at the top of the file.

After converting LRC to VTT, embed it in HTML5 video using: <video><track kind='subtitles' src='lyrics.vtt' srclang='en' label='English'></video>. The browser renders the subtitles natively via the track element.

LRC timestamps like [01:30.50] are converted to VTT format as 00:01:30.500 --> 00:01:35.000 (with dot separators and arrow notation). Centiseconds from LRC are multiplied by 10 to get VTT milliseconds.

Yes, completely free with no sign-up, no watermarks, and files up to 50 MB each. All processing happens locally in your browser.

Ready to convert your subtitles?

Drop your LRC file here and convert to VTT instantly.

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