Debug Screen

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The debug screen is a feature which allows a player to view elements of the game, such as the coordinates and the biome you're in. It's accessed by pressing the F3 key, which can also be used to do certain actions, like reloading chunks or cycling Creative and Spectator modes.

Legend[edit | edit source]

When using ReducedDebug Info, some areas will not be available

Name Description
Version The current version of the game (Example: Minecraft 19w05a (19w05a/vanilla/snapshot))
Java Version The version of the Java (eg: 1.8.0_74 64 bit)
Memory Amount of available memory, depending on your device.
Allocated Memory The memory that cannot be changed
CPU Central Processing Unit, along with Intel/Core, along with GHz
Display Shows display dimensions, along with graphics card stats
fps The frequency at which frames in an electronic device consisting of a video game for instance, in which the video sequence is displayed. This is also referred to as frames per second (fps).
chunk updates
integrated server
C Number of chunk sections
D Reder Distance (client-based)
L Blocks that have light updates to apply to (client-based)
pC Pending chunks
pU Pending uploads
aB Available buffers
F Number of loaded chunks outside the set render distance
O Number of chunks terminated via occlusion culling.
E Number of rendered entities over total entities in the form of a fraction
B Unused, always zero
I Amount of invisible entities
P Quantity of particles onscreen
T Shows your max frame rate and graphics type
All Displays the amount of loaded entities (refer to entity list via /summon)
MultiplayerChunkCache The highest number of chunks that can be loaded at a time.
Dimension FC Location based on the dimension
XYZ Location based on the coordinate scale. X: Number of blocks east or west, Y: Altitude and Z: Number of blocks north or south
Block Coordinates of the block a player stands on
Chunk Location of a player within a 16x16 area (chunk)
Facing The direction in which a player is facing.
Biome Location of biome in a snake-case string. Invalid if a player is in the following parameters: y=..0, 255...
Client Light
Server Light
Local Difficulty
Looking At Coordinates for looking at a block or fluid in the form of XYZ. This is always rounded to a whole number.

Commands[edit | edit source]

You can use the F3 key and a random letter to enable and disable some features.

Command Description
F3 +A Reloads all the chunks
F3 +B Toggles visibility of the hitboxes available on entities, and also shows the direction in which the entity is facing.
F3 +C Copies the player's current location and rotation in the form of /tp command.
If held, after ten seconds, it would force a debug crash.
F3 +D Clears the chat history, including past messages sent within its period. Action cannot be undone.
F3 +F Changes the render distance.
F3 +⇧ Shift +F
F3 +G Toggles chunk borders
F3 +H Toggles advanced tooltips
F3 +I Copies the block or entity data to the clipboard
F3 +N Creative <---> Spectator Cycle
F3 +P Toggles automatic pause if lost focus
F3 +Q Gives help/shows all the F3 commands
F3 +T Reloads all textures, models and sounds within a pack
F3 +⇧ Shift Toggles profile graph with debug screen
F3 +⇧ Alt Toggles Frame Time Graph with Debug Screen
F3 +F4 Toggles the game mode switcher

Pie Chart[edit | edit source]

Main article: Debug Screen § Profiler Graph

When shift is held when the debug screen is opened, a pie chart appears, display information about performance.

Trivia[edit | edit source]

Gallery[edit | edit source]

File:Screen Shot 2019-02-01 at 2.14.21 PM.png
Click for full Debug Screen gallery.