KRN Converter

Extract text from Humdrum and karaoke files (KRN)


Drop or upload your .KRN file
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How to extract text from your KRN file

  1. Click the "Select File" button above, and choose your KRN file.
  2. You’ll see a preview, if available.
  3. Click the "Convert file to..." button to extract text information.

Convert KRN to another file type

To convert KRN karaoke files to another format, you need Humdrum Toolkit or other Data software.

Convert a file to KRN

To convert other file formats to the "Musical Score & Karaoke" file type, you need software like Humdrum Toolkit or a similar tool.


About KRN files

A .krn file is either a Humdrum Kern music notation file or a proprietary Karaoke data file. The Kern format represents musical scores in a text-based, machine-readable syntax designed for computational music analysis. Alternatively, the Karaoke variant contains lyrics and timing data for playback. To interact with these files, users typically rely on the Humdrum Toolkit for notation analysis or KaraFun for karaoke playback. The primary disadvantage of the .krn format is its highly specialized and restrictive nature. The Kern format is command-line oriented, lacks native GUI support, and is not recognized by standard consumer music software. It requires a steep learning curve and relies heavily on academic scripts. The Karaoke variant is often locked into a closed, proprietary ecosystem, making it useless outside of its native player. Users frequently need to convert .krn files into standard formats like MID (MIDI) for audio playback or XML (MusicXML) to import into modern notation software. Converting Karaoke .krn files to MP3 or CDG is also a common goal. During conversion, specialized formatting or proprietary lyric timings may be lost. This file format is difficult to open or convert because it lacks widespread commercial support. Often, only the original software can properly read or export the data. Just drag and drop your file to convert.guru to identify the format, view its internal structure, and convert it when possible.

Convert.Guru analyzes your KRN file, detects the exact format, and lets you read the text inside.

Users also converted SPU, MKF and CKF files.


FAQ

If you want to convert KRN file to , you can use Humdrum Toolkit or similar software from the "Music Notation & Karaoke Data" category. In the File menu, look for Save As… or Export….

To convert files to KRN, try Humdrum Toolkit or another comparable tool in the "Music Notation & Karaoke Data" category.



The KRN Converter Story

The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our KRN converter.