STL to LRC Subtitle Converter
Fast. Private. Perfect.
100% local processing in your browser. No upload. No waiting.
Drag & drop your STL file here
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Supports .stl files up to 50 MB
More Subtitle Tools
How It Works
Upload STL File
Drag & drop or select your .stl file
Convert Instantly
We process it locally in your browser
Download LRC
Get your .lrc file immediately
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.
Free & Local
Each file can be up to 50 MB. Batches can contain up to 200 files or 1 GB total.
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 text input and writes line-level LRC entirely in your browser. Source STL timing is converted to [mm:ss.xx] tags. Bracketed inline tags are removed, STL end times are discarded, and pipe separators become untagged continuation lines. 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 lyric-capable music players that support the format.
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 text file, removes bracketed inline tags, discards end times, and writes line-level [mm:ss.xx] LRC tags followed by text.
Absolutely. Every conversion runs client-side in your browser. No subtitle data, file contents, or metadata is ever transmitted to a server.
Yes. Bracketed inline tags are removed, end times are discarded, and pipe separators become untagged continuation lines. LRC timing is truncated to centiseconds.
Yes, completely free with no sign-up, no watermarks, and files up to 50 MB each. 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 responsive page works in modern mobile browsers.