VocalRemover.org - Vocal Remover and Isolation. Separate voice from music out of a song free with powerful AI algorithms
UltraStar Deluxe - A free and open source karaoke game inspired by the Singstar™ game, runs on Windows, Linux and macOS.
Moises - Separate audio tracks using state-of-the-art AI algorithm
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OpenVPN - OpenVPN - The Open Source VPN
OpenKJ - Open source cross platform karaoke hosting software