質問: 大丈夫です と 元気だよ はどう違いますか? 大丈夫です と 元気だよ はどう違いますか?
回答: 大丈夫です。i'm okay. is a response to the question when the person is asking you suspecting something wrong with you. like 大丈夫? are you okay? 元気だよ。is a colloquial form of 元気です。i'm fine. this is an answer to a general question, like どう? how are you doing?