Convert TTML to LRC Online Free

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Convert W3C TTML broadcast subtitle files to LRC synced lyrics format for music players and karaoke applications. ChangeThisFile processes server-side and auto-deletes your file.

By ChangeThisFile Team · Last updated: March 2026

Quick Answer

ChangeThisFile converts TTML to LRC on a secure server. Upload your TTML subtitle file and it is converted to LRC format with bracketed timestamps for music players and karaoke apps. Files are auto-deleted after conversion. Free with no signup required.

First daily conversion free No signup required Encrypted transfer · Async jobs kept up to 24h Queued when needed Updated May 2026

TTML vs LRC: Format Comparison

Key differences between the two formats

Feature	TTML	LRC
Primary use	Broadcast subtitle delivery	Music player lyric sync
Structure	XML with namespace declarations	Plain text with [MM:SS.xx] timestamps
Styling	Full tts:* XML attributes	No styling support
Editability	XML editor required	Any text editor
Player support	Professional broadcast tools	foobar2000, Winamp, mobile players
File size	Larger due to XML	Very compact
Best for	Professional subtitle delivery	Audio lyric display

When to Convert

Common scenarios where this conversion is useful

Extracting music content lyrics from TTML archives

Broadcast archives of music videos and concerts often use TTML for subtitle storage. Converting to LRC extracts the synced lyrics for use in music player applications.

Building LRC lyric databases from broadcast content

Music platforms that use LRC for lyric display can convert TTML files from broadcast archives to populate their lyric databases without manual transcription.

Enabling karaoke from broadcast caption content

Karaoke software that reads LRC files can repurpose TTML captions from broadcast recordings of performances by converting to LRC for audio-synchronized lyric display.

Who Uses This Conversion

Tailored guidance for different workflows

Video Editors & Subtitlers

Convert TTML caption files to LRC for the subtitle track your editor or delivery spec requires
Move TTML subtitles into LRC to hand off to an editor working in a different tool

After converting to LRC, confirm the cue timings still line up with the video

Check that line breaks and special characters survived the TTML to LRC conversion

Content Creators & YouTubers

Convert TTML captions to LRC to upload alongside your video on YouTube, Vimeo, or social platforms
Turn a TTML caption file into LRC to make your video clearer and more accessible

Keep individual LRC cues short (about one to two lines) so captions stay readable on screen

Preview the LRC captions on the actual video to catch any timing drift before publishing

Accessibility & Localization Teams

Convert TTML subtitles to LRC to meet the caption format an accessibility or compliance spec requires
Prepare TTML captions as LRC to hand to translators or a localization workflow

Speaker labels and on-screen positioning only carry over if LRC supports them, so spot-check the result

Validate the LRC file in a caption checker to catch overlapping cues or malformed timestamps

How to Convert TTML to LRC

1

Upload your TTML file

Drag and drop your TTML subtitle file onto the converter, or click browse to select it. The file is uploaded over an encrypted connection.
2

Server-side conversion

The server parses the TTML XML, extracts each p element's begin timestamp and text, converts timestamps to LRC's [MM:SS.xx] format, and writes a plain text LRC file.
3

Download the LRC

Save your converted LRC file. The server copy is automatically deleted after processing.

Automate this conversion

Convert TTML to LRC via API

Integrate this conversion into your pipeline with 3 lines of code. Free tier: 25 conversions/month.

curl -X POST https://changethisfile.com/v1/convert \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -F "file=@input.ttml" \
  -F "target=lrc" \
  -o output.lrc --fail

const form = new FormData();
form.append('file', fileInput.files[0]);
form.append('target', 'lrc');

const res = await fetch('https://changethisfile.com/v1/convert', {
  method: 'POST',
  headers: { 'Authorization': 'Bearer YOUR_API_KEY' },
  body: form
});
const blob = await res.blob(); // your converted LRC file

Replace YOUR_API_KEY with your free key — no credit card needed.

Get a free API key

Frequently Asked Questions

What is LRC format?

LRC is a plain text format for syncing lyrics to audio. Each line starts with a bracketed timestamp like [01:23.45] followed by the lyric text. It is supported by most desktop and mobile music players.

Will TTML styling appear in the LRC output?

No. LRC has no styling support. TTML tts:* attributes are stripped during conversion. Only plain text content and timestamps are preserved.

How do I use the LRC file in a music player?

Place the .lrc file in the same folder as the audio file with the same base name (e.g., song.mp3 and song.lrc). Music players like foobar2000 with Lyric Show Panel will automatically load and display the lyrics.

Does the conversion use start or end times for LRC?

LRC only uses start timestamps. The TTML begin attribute becomes the LRC line timestamp. End times are discarded — LRC determines line duration from the next line's start time.

Are my files deleted after conversion?

Yes. Files are uploaded over HTTPS and automatically deleted from the server after the LRC is ready for download.

What timestamp precision does LRC support?

LRC timestamps use [MM:SS.xx] centisecond format. TTML's millisecond timestamps are rounded to centiseconds during conversion.

Is there a file size limit?

TTML files are XML and slightly larger than plain text, but still compact. The 50 MB server limit is not a concern for subtitle files.

Can I convert LRC back to TTML?

Yes. ChangeThisFile supports LRC to TTML conversion for round-tripping between formats.

Does the converter handle TTML files with multiple regions?

Yes. All p elements are extracted regardless of which region they reference. The region information is stripped, and lines are ordered chronologically in the LRC output.

Can the LRC be used on iOS music apps?

Several iOS music players support LRC files, including Cs Music Player, Marvis Pro, and Soor. Standard Apple Music does not support external LRC lyric files.

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