SRT vs LRC: Which Format Is Right for Your Music?

Choosing between SRT and LRC for your music comes down to one question: where will the lyrics play? LRC and SRT are the two most common timed lyrics formats, but they serve different purposes and work with different software. This guide breaks down the differences so you can pick the right format the first time.

What is an LRC file?

LRC (Lyric) is a plain text format designed specifically for music lyrics synchronization. Each line gets a single start timestamp in [mm:ss.xx] format, followed by the lyric text:

[00:12.50]When the night has come
[00:15.80]And the land is dark
[00:19.20]And the moon is the only light we'll see

The format is intentionally simple: the next line's timestamp implicitly ends the previous line, so no end time is needed. There's also an Enhanced LRC variant that adds word level timestamps for karaoke style highlighting, where each word lights up as it's sung:

[00:12.50]<00:12.50>When <00:12.90>the <00:13.20>night <00:13.60>has <00:14.00>come

LRC files are supported by most dedicated music players, including foobar2000, MusicBee, AIMP, and Poweramp, and streaming services like Apple Music and Spotify use the format internally for synced lyrics. You can create an LRC file using the AI LRC Generator or build one manually with the LRC Maker. For the full format spec, see the LRC format guide.

What is an SRT file?

SRT (SubRip Text) is a plain text subtitle format originally designed for video. Each subtitle block has an index number, a start and end timestamp, and the caption text:

1
00:00:12,500 --> 00:00:15,800
When the night has come

2
00:00:15,800 --> 00:00:19,200
And the land is dark

The critical difference from LRC is that SRT requires both a start and an end time for every line. This makes it ideal for video players, where subtitles must appear for a defined duration and then disappear. SRT is supported by YouTube, VLC, Premiere Pro, Final Cut Pro, DaVinci Resolve, and virtually every other video tool. You can preview an SRT file using the SRT Viewer, or read the full SRT format guide.

LRC vs SRT: key differences

• Timestamp format. LRC uses a start only timestamp per line: [mm:ss.xx]. SRT uses both a start and end timestamp for every block: HH:MM:SS,mmm --> HH:MM:SS,mmm. This is the most important structural difference between the two formats.

• End time requirement. LRC does not require an end time. The next line's timestamp implicitly closes the previous line. SRT always requires an explicit end time for every subtitle entry.

• Word level timing. LRC supports word level timestamps through the Enhanced LRC format, enabling karaoke style highlighting. SRT has no equivalent feature.

• Platform support. LRC is supported by music players and streaming services. SRT is supported by video platforms, video editors, and media players.

• Styling. Neither LRC nor SRT supports text styling. Both are plain text formats.

The biggest practical difference: LRC only needs a start time per line. SRT requires an explicit end time for every subtitle block. That makes LRC simpler for music, but it also means LRC won't work on video platforms that expect start and end pairs.

When to use LRC

Choose LRC when:

• You're syncing lyrics for a desktop music player like foobar2000, MusicBee, or AIMP
• You want synced lyrics on your phone with Poweramp or a similar app
• You need karaoke style word level timing (use Enhanced LRC)
• You're embedding synced lyrics into an MP3 or FLAC file
• You want the simplest, most compact lyrics format

LRC is the standard for music lyrics synchronization. If your goal is lyrics that scroll with the music inside a music player, or you want to upload synced lyrics to a streaming service like Spotify, Apple Music, or YouTube Music, LRC is the right choice. Most music players look for an LRC file with the same filename as the audio file, stored in the same folder. Drop both files in and lyrics scroll automatically with no extra setup.

When to use SRT

Choose SRT when:

• You're uploading captions to YouTube, Vimeo, or another video platform
• You're editing in Premiere Pro, Final Cut Pro, or DaVinci Resolve
• The file will play in VLC or another video media player
• You need maximum compatibility across video tools
• The lyrics will appear as caption overlays on a music video

SRT is the most widely supported subtitle format for video. If you're producing a music video with lyric overlays, or uploading captions anywhere video is involved, SRT is the safer choice. Unlike LRC, SRT doesn't require special player support. It works out of the box with virtually every video tool, which is why it's the default caption format worldwide. You can validate your SRT file with the SRT Validator before uploading.

How to convert between LRC and SRT

If you already have one format and need the other, QuickLRC has free converters for both directions:

• LRC to SRT: converts your LRC lyrics file to SRT for video use. The converter automatically calculates end times, which SRT requires but LRC doesn't store.
• SRT to LRC: converts an SRT file back to LRC for music player use. End times are dropped since LRC doesn't need them.

If you're starting from scratch, the fastest workflow is:

1. Upload your audio to the AI LRC Generator and paste your lyrics
2. Download as LRC for music players, or download as SRT directly for video use

Frequently asked questions

Is LRC or SRT better for music?

LRC is better for music players and streaming apps — it was designed specifically for synced lyrics and supports karaoke style word timing that SRT can't do. Use SRT only when your target platform is a video tool or video platform.

Does YouTube support LRC files?

No. YouTube does not accept LRC files for caption uploads. You need to convert your LRC to SRT (or VTT) before uploading captions to YouTube.

Can I use SRT for karaoke?

No. SRT only supports line level timing with no word level timestamps. For karaoke style highlighting where each word lights up as it's sung, you need the Enhanced LRC format.

Which format should I use for TikTok or Instagram Reels?

Use SRT. TikTok and Instagram Reels are video platforms that accept SRT for caption overlays. LRC is not supported on social video platforms.

Conclusion

LRC and SRT solve different problems. LRC is built for music players: compact, karaoke capable, and widely supported by audio software and streaming services. SRT is built for video: universally supported across platforms and editors, with defined subtitle durations. For most music projects, start with LRC and convert to SRT only if you need it for video. QuickLRC handles both formats and the conversion between them.