Fix LRC Timestamp Online

Q: Can I fix multiple songs at once?

Work on one LRC file per session to keep drift calculations precise. Use the reset button before loading a new song.

Q: Does the tool edit metadata tags?

Yes. It retains existing headers and updates the [offset] tag so karaoke players stay compatible.

Q: Will it work without internet?

The app runs entirely in your browser, so after the first load it continues to work offline.

Q: How do I share my adjustments?

Use the shareable link button to generate a URL that stores your lyrics and calibration settings in the hash.

Repair unsynced karaoke lyrics in seconds. Paste your .lrc file, apply precise offsets, calibrate drift using real song references, then export, copy, or share a permalink of the finished file.

Import LRC file Supports drag & drop, UTF-8, and UTF-16 lyric files.

Global offset (milliseconds) Positive values delay lyrics; negative values make them appear earlier.

Timing stretch (%) Adjust for gradual drift. 100% leaves timestamps unchanged.

Output precision (centiseconds)

Original LRC lyrics Paste raw LRC content or drop a file above. The tool keeps metadata tags such as [ti:], [ar:], [offset:].

Reference Drift Calibration

Pick any two lyric lines and enter the moment they should appear in the song. We will calculate both the offset and stretch automatically.

Reference line A

Actual time A (mm:ss.xx)

Reference line B

Actual time B (mm:ss.xx)

Detected lines

Runtime span

00:00 → 00:00

Applied stretch

100%

Offset

0 ms

Max shift

0 ms

Live lyric timeline

Line	Original time	Adjusted time	Shift	Lyric
Import an LRC file to preview timestamps.

Quality insights

Paste lyrics to receive automatic QA checks.

Fixed LRC output The corrected LRC keeps headers and formatting. Use copy or download to export the file.

About Fix LRC Timestamp Online

Fix LRC Timestamp Online is a purpose-built utility for musicians, streamers, and karaoke editors who need perfectly synced lyrics every time. We engineered it to outperform popular desktop and browser tools by combining rapid parsing, precise calibration, and a shareable permalink workflow. The lightweight interface respects Core Web Vitals, so you can load a large catalogue of lyric files without lag or layout shift. Because everything runs locally in your browser, no lyric data ever leaves your machine.

Unlike basic offset shifters, our drift calibration pairs two lyric lines with the exact playback moments they should land on. The tool calculates the ideal offset and time stretch automatically, fixing recordings that start in sync but slowly fall behind. Extras like copy-to-clipboard, one-click download, and permalink sharing streamline collaboration with vocalists, translators, or subtitle reviewers.

How to Use

Start by dragging in an LRC file or pasting the raw text into the input field. The tool parses every timestamp instantly and generates a live timeline on the right. Use the global offset to nudge lyrics earlier or later and adjust the stretch slider if notes gradually slip out of time. For best-in-class accuracy, pick two reliable lyric anchors—such as the first verse and chorus—enter the true playback times, then tap Calibrate Drift to calculate the exact correction. Finally, review the updated preview and export the polished LRC using the copy, download, or shareable link options.

Tips

Choose lyric lines with clear vocal attacks for drift calibration; ambiguous breaths or ad-libs can skew results. When converting from studio to live audio, expect small negative offsets because singers often anticipate beats. Keep the precision setting at two decimals for karaoke players that read centiseconds, but reduce it to zero for older hardware that needs whole-second timing. Saving a shareable permalink lets teammates open the same state—even offline—so you can discuss timestamp fixes asynchronously.

FAQs

Can I fix multiple songs at once? Work one song per session to maintain accuracy, then reset before loading another file.

Does the tool edit metadata tags? Yes, it preserves and updates existing [offset] tags while leaving other headers untouched.

Will it work without internet? Absolutely. Once the page loads, all features continue to function offline.

How do I share my adjustments? Use the shareable link button to copy a URL containing your current lyrics and settings.

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