How do you turn on hitboxes in Minecraft?

Hitboxes are regions that describe how much space an entity takes up, which can be shown by pressing the F3 + B keys.

How do you turn hitboxes on?

To turn on hitboxes, all you need to is press F3+B on your keyboard. Hitboxes can be quite useful as they help players in a variety of ways. Be it knowing the parts of the enemies where it can be damaged or differentiating one entity from the other, the hitbox is a much-needed aspect of the game.