STL to LRC Converter
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100% local processing in your browser. No upload. No waiting. No limits.
Drag & drop your STL file here
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Supports .stl files up to any size
More Subtitle Tools
Why Choose AllSubConverter?
Your Privacy Matters
Everything runs in your browser. Your files are never uploaded.
Lightning Fast
Optimized processing engine converts files in seconds.
Truly Unlimited
No file size limits. No daily limits. Completely free.
Works Everywhere
Works on Windows, Mac, Linux, iOS, Android - any modern browser.
Free Online STL to LRC Converter
Our STL to LRC converter reads Spruce Subtitle input and produces Lyrics output entirely in your browser. Source STL timing (SMPTE HH:MM:SS:FF frame timecodes) is converted to LRC timing ([mm:ss.xx] minute-second-centisecond). Styling and markup that the target format cannot represent are normalized or stripped, leaving valid, ready-to-use output. The conversion runs client-side, so your subtitle files are never uploaded to a server.
Input Format
STLSTL (Spruce Subtitle) is a text-based subtitle format used in DVD authoring and some broadcast workflows. Each entry uses comma-separated start and end timecodes followed by the subtitle text, with the pipe character (|) denoting line breaks. This text STL variant is distinct from the binary EBU STL broadcast format.
Output Format
LRCLRC (Lyrics) is a timestamped lyrics format for music players and karaoke apps. Each lyric line is prefixed with a [mm:ss.xx] timestamp. LRC has no end times (a line ends when the next begins) and no styling, making it ideal for synced song lyrics rather than film subtitles.
Features
Why Convert?
Format Differences
Common Use Cases
Synced Lyrics
Turn timed subtitles into LRC lyric files for music players that display synced song lyrics.
Karaoke
Produce LRC files for karaoke applications that read line-synced lyrics.
Music Apps
Generate LRC for MiniLyrics, Poweramp, and other lyric-capable music players.
Related Formats
SRT (SubRip)
The universal plain-text alternative: convert to SRT for maximum device compatibility.
VTT (WebVTT)
The web alternative: convert to VTT if your target is HTML5 video or YouTube.
TXT (Plain Text)
The transcript alternative: convert to TXT for a clean plain-text transcript.
Frequently Asked Questions
It reads a Spruce Subtitle file, parses each cue's timing and text, normalizes the structure for Lyrics, and writes a valid .lrc file. Source STL timing (SMPTE HH:MM:SS:FF frame timecodes) is converted to LRC timing ([mm:ss.xx] minute-second-centisecond).
Absolutely. Every conversion runs client-side in your browser. No subtitle data, file contents, or metadata is ever transmitted to a server.
STL carries styling or markup that LRC cannot represent, so that formatting is removed; only the dialogue text and timing are preserved.
Yes, completely free with no sign-up, no watermarks, and no file size limits. All processing happens in your browser, so your files are never uploaded to a server.
Source STL timing (SMPTE HH:MM:SS:FF frame timecodes) is converted to LRC timing ([mm:ss.xx] minute-second-centisecond).
Yes. The converter is fully responsive and works in any modern mobile browser on iOS and Android.