LRC vs SRT

LRC times a lyric. SRT times a subtitle cue. They are not two names for one file.

LRC SRT
What it is for Lyrics that scroll with a song Captions on a video
Time A start, in square brackets A start and an end on each cue
Extra lines Tags such as title and artist, which are not lyrics A cue number, then the clock, then the text

An LRC line looks like [00:15.40]Lyric line. The clock is when that line starts. There is no end. Tags such as [ti:] and [ar:] name the song; they are not cues. An SRT cue is a number, a line with -->, and the caption. A video player needs the end so it knows when to clear the line.

Use LRC when the file has to open in a lyrics player. Use SRT when the file has to open in a video editor or a player that reads SubRip. If you have the lyric file and the video tool wants cues, the conversion is LRC to SRT. That page is where the missing end time is calculated. This page does not convert.

After you have an SRT, plain text without clocks is SRT to TXT. A WebVTT file is a different caption format: VTT to SRT. Word is a third job, on the SRT to Word converter.

LRC and SRT

Which file you have, and which page converts it.

Is an LRC file already an SRT?

No. LRC stores a start time and the lyric. SRT stores a cue number, a start, an end, and the text. A music player and a video player are not reading the same file.

Which one should I keep?

Keep LRC when a lyrics app or a player is what will open the file. Keep SRT when a video editor or a player needs cues with an end time.

Does this page convert the file?

No. The conversion, including how the missing end time is filled, is on the LRC to SRT page. Nothing is uploaded there either.