Blueprint string format

This is a technical description of the blueprint string format, used to share blueprints with other users.

A blueprint string is a JSON representation of the blueprint, compressed with zlib deflate and then encoded using base64 with a version byte in front. The version byte is currently 0 for vanilla 0.15 and 0.16. So to get the JSON representation of a blueprint from a blueprint string, skip the first byte, base64 decode the string, and finally decompress using zlib inflate.

Json representation of a blueprint/blueprint book

The json representation of a blueprint or blueprint book is one large object inside another "wrapping" object, its key inside that object is either blueprint or blueprint-book.

Blueprint book object

Key	Description	Data type
item	String, the name of the item that was saved ("blueprint-book" in vanilla).	String
label	String, the name of the blueprint set by the user.	String
label_color	The color of the label of this blueprint. #Color object.	Object
blueprints	The actual content of the blueprint book, array of objects containing an "index" key and 0-based value and a "blueprint" key with a #Blueprint object as the value.	Array
active_index	Index of the currently selected blueprint, 0-based.	Integer
version	The map version of the map the blueprint was created in.	Integer (long)

Blueprint object

Key	Description	Data type
item	String, the name of the item that was saved ("blueprint" in vanilla).	String
label	String, the name of the blueprint set by the user.	String
label_color	The color of the label of this blueprint. #Color object.	Object
entities	The actual content of the blueprint, array of #Entity objects.	Array
tiles	The tiles included in the blueprint, array of #Tile objects.	Array
icons	The icons of the blueprint set by the user, array of #Icon objects.	Array
version	The map version of the map the blueprint was created in.	Integer (long)

Icon object

Key	Description	Data type
index	Index of the icon, 1-based.	Integer
signal	The icon that is displayed, #SignalID object.	Object

SignalID object

Key	Description	Data type
name	Name of the signal prototype this signal is set to.	String
type	Type of the signal. Either "item", "fluid" or "virtual".	String

Entity object

Key	Description	Data type
entity_number	Index of the entity, 1-based.	Integer
name	Prototype name of the entity (e.g. "offshore-pump").	String
position	#Position object, position of the entity within the blueprint.	Object
direction	Direction of the entity, uint (optional).	Integer
connections	Circuit connection, object with keys starting from 1, values are #Connection objects (optional).	Object
control_behaviour		Object
items	Item requests by this entity, this is what defines the item-request-proxy when the blueprint is placed, optional. #Item request object	Object
recipe	Name of the recipe prototype this assembling machine is set to, optional, string.	String
bar	Used by Prototype/Container, optional. The index of the first inaccessible item slot due to limiting with the red "bar". 0-based Types/ItemStackIndex.	Integer
infinity_settings	Used by Prototype/InfinityContainer, optional. #Infinity settings object	Object
type	Type of the underground belt or loader, optional. Either "input" or "output".	String
input_priority	Input priority of the splitter, optional. Either "right" or "left", "none" is omitted.	String
output_priority	Output priority of the splitter, optional. Either "right" or "left", "none" is omitted.	String
filter	Filter of the splitter, optional. Name of the item prototype the filter is set to, string.	String
filters	Filters of the filter inserter or loader, optional. Array of #Item filter objects.	Array
override_stack_size	The stack size the inserter is set to, optional. Types/uint8.	Integer
drop_position	The drop position the inserter is set to, optional. #Position object.	Object
pickup_position	The pickup position the inserter is set to, optional. #Position object.	Object
request_filters	Used by Prototype/LogisticContainer, optional. #Logistic filter object.	Array
request_from_buffers	Boolean. Whether this requester chest can request from buffer chests.	Boolean
parameters	Used by Programmable speaker, optional. #Speaker parameter object.	Object
alert_parameters	Used by Programmable speaker, optional. #Speaker alert parameter object	Object
auto_launch	Used by the rocket silo, optional. Boolean, whether auto launch is enabled.	Boolean
variation	Used by Prototype/SimpleEntityWithForce or Prototype/SimpleEntityWithOwner, optional. Types/GraphicsVariation
color	Color of the Prototype/SimpleEntityWithForce, Prototype/SimpleEntityWithOwner, or train station, optional. #Color object.	Object
station	The name of the train station, optional.	String

Tile object

Key	Description	Data type
name	Prototype name of the tile (e.g. "concrete")	String
position	#Position object, position of the entity within the blueprint.	Object

Position object

Key	Description	Data type
x	X position within the blueprint, 0 is the center.	Floating point
y	Y position within the blueprint, 0 is the center.	Floating point

Connection object

Object containing information about the connections to other entities formed by red or green wires.

Key	Description	Data type
1	First connection point. The default for everything that doesn't have multiple connection points.#Connection point object	Object
2	Second connection point. For example, the "output" part of an arithmetic combinator.#Connection point object	Object

Connection point object

The actual point where a wire is connected to. Contains information about where it is connected to.

Key	Description	Data type
red	An array of #Connection data object containing all the connections from this point created by red wire.	Array
green	An array of #Connection data object containing all the connections from this point created by green wire.	Array

Connection data object

Information about a single connection between two connection points.

Key	Description	Data type
entity_id	ID of the entity this connection is connected with.	Integer
circuit_id	ID of the circuit this connection is connected with.	Integer

Item request object

1 or more instances of key/value pairs. Key is the name of the item, string. Value is the amount of items to be requested, Types/ItemCountType.

Item filter object

Key	Description	Data type
name	Name of the item prototype this filter is set to.	String
index	Index of the filter, 1-based.	Integer

Infinity settings object

Key	Description
remove_unfiltered_items	Boolean. Whether the "remove unfiltered items" checkbox is checked.	Boolean
filters	Filters of the infinity container, optional. Array of #Infinity filter objects.	Array

Infinity filter object

Key	Description
name	Name of the item prototype the filter is set to, string.	String
count	Number the filter is set to, Types/ItemCountType.	Integer
mode	Mode of the filter. Either "at-least", "at-most", or "exactly".	String
index	Index of the filter, 1-based.	Integer

Logistic filter object

Key	Description	Data type
name	Name of the item prototype this filter is set to.	String
index	Index of the filter, 1-based.	Integer
count	Number the filter is set to, Types/ItemCountType. Is 0 for storage chests.	Integer

Speaker parameter object

Key	Description	Data type
playback_volume	Types/double. Volume of the speaker.	Floating point
playback_globally	Boolean, whether global playback is enabled.	Boolean
allow_polyphony	Boolean, whether polyphony is allowed.	Boolean

Speaker alert parameter object

Key	Description	Data type
show_alert	Boolean, whether an alert is shown.	Boolean
show_on_map	Boolean, whether an alert icon is shown on the map.	Boolean
icon_signal_id	The icon that is displayed with the alert, #SignalID object.	Object
alert_message	String, message of the alert.	String

Color object

Key	Description
r	red
g	green
b	blue
a	transparency