So far I found.
Mbed cli - I'd prefer a built application not something I need to install python + git + mercurial. Not impressed. I may try the online version.
MDK-ARM - Said it was free then asked for licenses. Not sure if this is free or not. No issue with paying for the IDE but I'd like to check it out first.
truestudio - seems to have an evaluation at least. not tried yet.
Any recommendations? - or is there a thread on this somewhere?