How do I say "I miss you" to a friend in Japanese?
I have friends from Japan, and I often want to say "I miss you" in Japanese. But I don't know the right way to express this. Can any native speakers help me?

Question

Answer

Hi, I miss you for friends can be translated to  またあいたいね. 
This phrase is either for your loved one or your friends in English. In either case, it is a very friendly expression. Therfore, translating this with あなた and です sounds awkward to me since it is too formal.

This is a very good question to understand japanse culture. Actually, I miss you is an expression used mainly for romance in a japanese context as in the below linked popular Japanse song.

https://www.youtube.com/watch?v=4xVVADFaqIQ

Answer

You should say あなたに会いたいです