I just bought some bitcoin...but I used bitaddress on a offline computer I want to make sure that my private key actually works..but how can I do this 100% safe?
I could install bitcoin client in offline computer and then import private key...
I could install bitcoin client in offline computer and then import private key...
Yes.
If you import the private key then Bitcoin core should calculate the bitcoin address for you and let you know if the address you used is correct.
You can then use various block explorers to verify that the address has the proper amount of bitcoins associated with it.
but wouldn't I need to sync to verify my balance is there?
You have to look at the blockchain to verify your balance. You can do this with Bitcoin Core online and synchronized, or you can trust some online block explorers.
Thanks for the reply. So I don't even need to sync for my address to come up? I just import the private key on my offline computer then it will show my address?
I've already got bitcoin in the address so I know theres some in it I just want to make sure I can access it with the private key that bitaddress give me just in case there was a glitch.