UST Converter

Extract text from UST files


Drop or upload your .UST file

How to extract text from your UST file

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

Convert UST to another file type

To convert your UST file to another format, you need UTAU or other Audio software.

  • UST to EST
  • UST to PST
  • UST to IST
  • UST to VSQX
  • UST to CST
  • UST to MP3
  • UST to WAV
  • UST to AAC
  • UST to FLAC
  • UST to OGG
  • UST to WMA
  • UST to M4A

Convert a file to UST

To convert other file formats to the "Synthesizer Project File" file type, you need software like UTAU or a similar tool.

  • MIDI to UST
  • AAC to UST
  • TTA to UST
  • AU to UST
  • WV to UST
  • DTS to UST
  • MID to UST
  • FLAC to UST
  • RA to UST
  • MP3 to UST
  • PCM to UST
  • WAV to UST

About UST files

A .UST file is a project file created by UTAU, a popular Japanese singing synthesizer application. Think of it as digital sheet music rather than an audio recording; it contains the melody notes, lyrics (typically in Hiragana or Romaji), and tuning parameters like pitch bends and vibrato, but it does not contain actual sound. To hear the music, the file must be opened in UTAU or OpenUtau, linked to a specific "Voicebank" (a library of recorded samples), and rendered into an audio format. A major issue for users outside Japan is text encoding: standard .UST files use Shift-JIS encoding. If opened on a PC without a Japanese locale, the lyrics often display as garbled "mojibake" characters, breaking compatibility with voicebanks. Users frequently convert these files to VSQX for use in VOCALOID, or to MID (MIDI) for general music production.

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

Users also converted USTX, MP3, SVP, MID, VSQ, ZIP, WAV, VSQX, MIDI, MP4, RAR, 7Z and MPEG files.



The UST 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 UST converter.