scammer vs swindler

scammer and swindler both are nouns.

Word	Noun	Adjective	Verb	Adverb
scammer	Yes	No	No	No
swindler	Yes	No	No	No

As nouns, scammer and swindler are synonyms defined as:

scammer and swindler: a person who swindles you by means of deception or fraud

Other synonyms of scammer include chiseler, chiseller, defrauder, gouger, grifter.

scammer (noun)	swindler (noun)
a person who swindles you by means of deception or fraud	a person who swindles you by means of deception or fraud