Nik Software is now available for free.
This is a great program used by lots of photographer, it has many features including Black and white coversions in silver fx and tone mapping, raw sharpening and sharpening for output as well as much more.
You can get it here https://www.google.com/nikcollection/
The other great thing is that you can get the trainging for free as well. You can get it here.