Click the "Select File" button above, and choose your UST file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert UST to another file type
To convert UST sequences to another format, you need UTAU or other Audio software.
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.
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 problem 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.
If you want to convert UST file to EST, PST, IST, VSQX, CST, MP3, WAV, AAC, FLAC, OGG, WMA or M4A, you can use UTAU or similar software from the "Vocal Synthesizer Sequence" category. In the File menu, look for Save As… or Export….
To convert MIDI, AAC, TTA, AU, WV, DTS, MID, FLAC, RA, MP3, PCM or WAV files to UST, try UTAU or another comparable tool in the "Vocal Synthesizer Sequence" category.
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.