OFFICIAL PAGE: XTRAX STEMS
XTRAX STEMS, from Audionamix, is a cloud-based application which can take a mono or stereo source file and automatically produce four stems: vocals, drums, bass, and the remaining music. The separated stems can be easily exported to other applications, such as a spectral editor, for further refinement if needed. XTRAX STEMS provides De-bleed sliders for each separated stem to help optimize the results. XTRAX STEMS is a macOS and Windows application and is available on a subscription basis. Two subscription options are currently offered. Being cloud-based, all of the considerable number crunching is done in the cloud. Full details are available at the official page.
Screenshot courtesy of Christopher Kissel