OFFICIAL PAGE: MISST
MISST is a free and open source application, written in Python, that uses state-of-the-art demucs source separation models to extract the 4 core stems from audio files (Bass, Drums, Other Instrumentals and Vocals). MISST also is a music player with the ability to import songs and playlists directly from your music library. As of version 3.1.0, MISST is only available on windows with guaranteed compatibility, but instructions are available for installation on Linux and macOS as well. Full details at the link above.
Screenshots courtesy of GitHub - Frikallo/MISST