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Synthesizer V StudioNEUTRINO
Paid

Paid software with voice databases sold separately; free trials are available.

 Free

Free to download, with the project supported by crowdfunding and sponsors.

Windows, macOS Windows
  • Voices built from licensed recordings of real singers
  • Large and regularly expanded catalogue of voice databases
  • Free singing voice synthesis
  • Seventeen voice characters to choose from
  • Paid software, with voices bought separately
  • Closed source
  • Official site is mostly in Japanese
  • Web version is still in alpha testing
Downloadable app Downloadable app
Closed source Closed source
License not stated License not stated
Not stated if an account is needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked September 26, 2026

Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.