As nouns the difference between converter and changer
is that converter
is a person or thing that converts while changer
is someone or something who changes things.
A person or thing that converts.
A retort, used in the Bessemer process, in which molten cast iron is decarburized and converted into steel by a blast of air forced through the liquid metal.
Someone or something who changes things.
* Usually used together with another noun, eg, automatic tool changer'', ''shape changer'', ''mind changer