FactorSynth

Since version 3 available in a form of plugin for most DAWs. Demo runs for 20 minutes at a time. Exporting and component editing are disabled.

Till v. 2 it was Ableton-only compatible add-on. And (probably) could be used on free Ableton Live.

 

Also, not for separating drums from a full mix, but for separating your already separated drums into further layers like kick, snare, transients, cymbals, etc. from Demucs or GSEP (the latter usually has better shakers and at least hi-hats when they're in fast tempo).

 

[till v2 demo version limit was 8 seconds and no limit for full version]” “it’s amazing”.

It works the same way as Regroover VST (which may have some problems with creating a trial account).

It’s comparable or better quality (both better than zero shot for at least drums).

 

“Factorsynth has more granularity, but drumsep is easier to work with and gets less confused between toms and kicks.”

 

There’s a freeware prototype 0.4-0.1 versions from 2017 for Mac available to download:

https://www.jjburred.com/software/factorsynth/proto.html