Compare software

OpenUtau vs Emvoice One: catalog facts
OpenUtau	Emvoice One
Free Free and open source under the MIT licence.	Paid Commercial plug-in with a downloadable demo.
Windows	Windows, macOS
Open-source successor to UTAU Works with the UTAU voicebank ecosystem	Sings typed lyrics without a recorded vocalist Available as VST, AU and AAX plug-ins
Requires voicebanks and some setup before first use Documentation lives mainly in the GitHub wiki	Runs as a plug-in inside a host DAW Limited to the voices the developer provides
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License: Proprietary
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 October 1, 2026

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