Scalable

Scalable is a LabyMod 4 addon that scales your own model, other players, NPCs and every mob type individually - 84 sliders from 10 to 500 percent.

It all happens in the render layer: one matrix transform around the single point every entity is drawn through, anchored at the feet so models stay on the ground. No packets are sent and hitboxes are untouched, so nobody else sees a thing.