There are some online pharmacies that work with doctor's willing to write an Rx without ever seeing or examining you. Please don't fall for that trap and end up with a handful of Xanax, just looking for a cheap thrill. It's a benzodiazapine, very potent, and easy to get a high tolerance to. IF you have a legit need for Xanax, like an anxiety disorder, see a local doctor and get a real diagnosis. It can be a good medication for anxiety, but comes with a lot of side effects and is habit forming after a short time.
IOW, it might get you high for a couple of weeks, but you're gonna have to pay the price when you run out. Is it worth additional nervousness, lack of sleep, and seizures? I don't think so.