Convert LRC to ASS Online Free
Convert LRC synced lyrics files to ASS subtitle format for use in desktop video players and subtitle editing software. ChangeThisFile processes server-side and auto-deletes your file.
By ChangeThisFile Team · Last updated: March 2026
ChangeThisFile converts LRC to ASS on a secure server. Upload your LRC synced lyrics file and it is converted to ASS subtitle format for desktop video players and subtitle editors. Files are auto-deleted after conversion. Free with no signup required.
Convert LRC to ASS
Drop your LRC file here to convert it instantly
Drag & drop your .lrc file here, or click to browse
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LRC vs ASS: Format Comparison
Key differences between the two formats
| Feature | LRC | ASS |
|---|---|---|
| Primary use | Music lyrics in audio players | Video subtitles and anime fansubs |
| Styling | No styling support | Full font, color, border control |
| Timestamp format | [MM:SS.xx] bracketed | H:MM:SS.cc centiseconds |
| Positioning | None | \pos(x,y) coordinate tags |
| Player support | Music players (foobar2000, etc.) | VLC, MPC, mpv, Aegisub |
| File size | Very compact | Slightly larger with style blocks |
| Best for | Synced song lyrics | Styled video subtitles |
When to Convert
Common scenarios where this conversion is useful
Adding music video lyrics as ASS subtitle overlays
LRC lyric files for songs can be converted to ASS to create styled lyric overlays for music video files. ASS allows customizing font, size, color, and screen position for karaoke-style display.
Importing song lyrics into Aegisub for timing refinement
LRC files contain coarse line-level timing. Converting to ASS allows importing into Aegisub for precise frame-level timing refinement and visual styling before use as video subtitles.
Repurposing lyric archives as video subtitle files
Large LRC lyric databases can be converted to ASS for use as subtitle files with video content, making them playable in any desktop video player that supports ASS.
How to Convert LRC to ASS
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1
Upload your LRC file
Drag and drop your LRC lyrics file onto the converter, or click browse to select it. The file is uploaded over an encrypted connection.
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2
Server-side conversion
The server parses each LRC timestamp and lyric line, converts [MM:SS.xx] timestamps to ASS H:MM:SS.cc format, and writes an ASS file with standard Script Info and Events sections.
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3
Download the ASS
Save your converted ASS file. The server copy is automatically deleted after processing.
Frequently Asked Questions
LRC is a simple plain text format for syncing song lyrics to audio. Each line has a bracketed timestamp like [01:23.45] followed by the lyric text. It is widely supported by desktop and mobile music players.
No. LRC only has a start timestamp per line. The ASS converter estimates end times as the start of the next line minus a small gap, or adds a default 3-second duration for the last line.
Yes. Once converted to ASS, open the file in Aegisub to add fonts, colors, sizes, borders, and positioning. The ASS format supports full typographic control over subtitle display.
The converted ASS file uses a default style (Arial, white text, black border) typical of fansub releases. You can customize styles in Aegisub or by editing the [V4+ Styles] section directly.
Yes. Files are uploaded over HTTPS and automatically deleted from the server after the ASS is ready for download.
LRC metadata tags like [ti:], [ar:], [al:], and [by:] are written to the ASS Script Info section as Title or Comment fields. They do not appear as subtitle cues.
LRC files are very compact plain text. The 50 MB server limit is not a practical constraint for any LRC file.
Yes. ChangeThisFile supports ASS to LRC conversion for round-tripping between formats.
Enhanced LRC has word-level timestamps in angle brackets like <00:01.23>. The converter uses the line-level timestamp and includes the full line text, stripping word-level markers.
VLC, MPC-HC, MPC-BE, mpv, and PotPlayer support ASS natively. Aegisub is the standard editor for ASS files on all platforms.
Related Conversions
Need to convert programmatically?
Use the ChangeThisFile API to convert LRC to ASS in your app. No rate limits, up to 500MB files, simple REST endpoint.
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