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OpenUtau vs VOCALOID: catalog facts
OpenUtau	VOCALOID
Free Free and open source under the MIT licence.	Paid Paid editor and voicebanks, with a free trial of VOCALOID6.
Windows	Windows, macOS, iOS
Open-source successor to UTAU Works with the UTAU voicebank ecosystem	Established singing synthesis with many voicebanks AI voices in VOCALOID6
Requires voicebanks and some setup before first use Documentation lives mainly in the GitHub wiki	Voicebanks are sold separately Official site is primarily in Japanese
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 26, 2026

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