Hitler died on april 30 1945 after the world war.He commited suicide by shooting himself

When America invaded Germany in 1945, Hitler's attempt to gain control over Russia had already failed.Most of the GERMAN troops were already at different positions getting killed at a hilarious rate.This made Adolf Hitler realise that the war has fallen to the allied side and that any attempt by him is not going to be of any potential advantage.He feared,that he'll be imprisioned (Remember ,he killed more than 60 million jews at his concentration chamber.)and executed in a very torturous way,he committed suicide at one of his houses in Berlin on 30th April,1945.

Hope that's of some help.