Always read the license agreement of your chosen voicebank. For hobbyist YouTube covers, most are fine.
OpenUTAU is a modern, open-source re-imagining of UTAU. It supports many free, high-quality community voicebanks that are compatible with the .UST format. vocaloid voicebank free
We are now seeing the emergence of and DiffSinger , open-source projects that utilize AI diffusion models. These allow users to input a melody and lyrics, and the AI generates a vocal performance that breathes, vibrates, and harmonizes—all for $0. Always read the license agreement of your chosen voicebank
(Invoking related search suggestions.)
Yamaha does not offer permanent free versions of its standard software, but there are limited-access entry points: but there are limited-access entry points: