likewise vs too

likewise and too both are adverbs.

Word	Noun	Adjective	Verb	Adverb
likewise	No	No	No	Yes
too	No	No	No	Yes

As adverbs, likewise and too are synonyms defined as:

Other synonyms of likewise include also, as well, besides.

likewise (adverb)	too (adverb)
in like or similar manner	to a degree exceeding normal or proper limits
in addition	in addition
equally