DPS calculator

Hi, Is there any tool or addon which can calculate the actual DPS of the build i made? I am using the grimtool but I wanna test AAR or Drain essence builds.

There’s the now-deprecated Grim Damage.
Should still work though.

I know that but i need an external one. I mean When I make a new bulid in the grimtool I wanna see the actual DPS of the Ather Ray for example. Is it possible somewhere?