finally vs in the end

finally and in the end both are adverbs.

Word	Noun	Adjective	Verb	Adverb
finally	No	No	No	Yes
in the end	No	No	No	Yes

As adverbs, finally and in the end are synonyms defined as:

Other synonyms of finally include at last, at long last, ultimately.

finally (adverb)	in the end (adverb)
as the end result of a succession or process	as the end result of a succession or process
after an unspecified period of time or an especially long delay	eventually or after a lengthy period of time
the item at the end