LRC to JSON Subtitle Converter

Quickly convert LyRiCs subtitles to Structured JSON locally in your browser. Timelines and subtitle content are never uploaded.

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What happens when converting LRC to JSON?

LyRiCs content is parsed into a unified millisecond timeline before being exported as Structured JSON. Valid timing and subtitle text are preserved.

JSON output gives every subtitle start_ms, end_ms, and text fields for further programmatic processing.

LRC stores start times only. Lyrics sharing a timestamp share an end time, and offset metadata shifts the full timeline.

Format overview

About LRC and JSON subtitle formats

Learn what each file format is, how it is structured, where it is commonly used, and what to consider during conversion.

Source file format

LRC · LyRiCs

LRC, short for LyRiCs, is a synchronized lyrics format. A timestamp before each lyric line lets music players reveal lyrics as a song progresses.

File structure: A typical LRC line uses a [minutes:seconds.fraction] lyric-text structure. Files may also contain title, artist, album, and offset metadata, and one line can carry multiple timestamps.
Common uses: LRC is commonly used by music players, desktop lyrics displays, mobile music apps, karaoke lyrics, and tools for creating synchronized song lyrics.
Conversion notes: Standard LRC normally stores only the start time of each lyric line. When converting to a subtitle format, an end time must be inferred from the next valid lyric timestamp.

Target file format

JSON · Structured JSON

JSON, or JavaScript Object Notation, is a structured data-interchange format rather than one industry-standard subtitle specification. Explicit fields can represent timing, text, and extensible metadata.

File structure: This tool uses a JSON object containing a cues array. Each cue has start_ms, end_ms, and text fields representing the start time, end time, and subtitle text.
Common uses: JSON is useful for subtitle software development, API exchange, batch processing, data analysis, automation, and preserving structured subtitle data for later programmatic or AI processing.
Conversion notes: Subtitle JSON schemas vary between applications. This tool can read subtitle arrays and objects containing cues or subtitles arrays, and it exports a consistent cues structure.