How to jailbreak ios 6.1.3 on iphone 4s?

Like an idiot i updated my iphone 4S to 6.1.3, i want to figure out a way to JAILBREAK ios 6.1.3 on iphone 4S without downloading anything, and are not scams that actually worked

There are no Jailbreaks for IOS 6.1.3 and there are currently no teams working on a new jailbreak everyone is waiting for IOS 7 to come out to start exploiting apple again. IOS 7 is supposed to launch in September.

Not possible. Even if it was you would have to download the jailbreak tool at the very least.