Debug screen



The debug screen is a screen that is triggered when the F3 key is pressed. It shows the chunk cache, the memory usage, various parameters, the player's map coordinates and a graph that measures latency. It can be very useful for telling other players your map location, checking for lag and various other purposes.

Legend:

Below these parameters, the player's map coordinates are displayed. The X and Z axis are both horizontal, and the Y axis is vertical. At the bottom of the screen, a graph is displayed which measures latency. When you activate the debug screen, it also shows numbers above every mob in the chunk. This is useful for finding things like dungeons.