Heard my ankle crack when someone stepped on it. Bruised, swollen, and hurts to move. doctors or?

My answer is to see a doctor. You should apply ice for the swelling. Try and keep the ankle elevated and stay off of it as much as possible. Ankles are tricky and there a many small bones in your feet that can easily break. If untreated there is a chance of a harder recovery, if it is broken. Your foot also should not swell or bruise unless there is an issue. Bruises are the result of internal bleeding, if you are swollen, bruised, and heard a crack there is a high probability that you have broken or best scenario a sprain that needs medical attention.