open source darktable is what I use. http://www.darktable.org/ http://www.darktable.org/ It’s fast Leaves it in place I think it can make collection, but no

open source darktable is what I use. http://www.darktable.org/ http://www.darktable.org/ It’s fast Leaves it in place I think it can make collection, but not sure on this point Not sure It keeps files locally Also it is open source ;)