Old pokerstove

https://github.com/andrewprock/pokerstove

or use equilab

http://www.propokertools.com/simulations

I use this for omaha.
It works for nlhe too but I don't know if you can find better for nlhe.
For plo it's the best tool available.

after how many years pokerstove finally goes for pay, that is weird

thank you!