What Should I Save Renders As?

What do you save renders as so that they are transparent when you post them in a topic. I have been saving them as .gif but thats not right...can someone help please.

 

save them as .PNG then the background will be transparent. hope this helps.

 

ok thanks alot i just tried that and its working good.

 

good to hear, are you going to say here and post? or did you join just to ask that question. if not, you can donate me your creds of you want lol, jkjk.

anyway, i reccomend you stay, its cool here,

 

haha im going to stay ive been here for a while i just havent really posted...i dont really get this rep and credit stuff so for all i care u can have my credits if you want them...