Charts

5 operations. Call any of them with cyberchef_bake, or pre-load them with CYBERCHEF_TOOL_SURFACE=all.

Entropy

Shannon Entropy, in the context of information theory, is a measure of the rate at which information is produced by a source of data. It can be used, in a broad sense, to detect whether data is likely to be structured or unstructured. 8 is the maximum, representing highly unstructured, ‘random’ data. English language text usually falls somewhere between 3.5 and 5. Properly encrypted or compressed data should have an entropy of over 7.5.

• Tool name: cyberchef_entropy
• Input / output: ArrayBuffer → html

Argument	Type	Default
visualisation	option	Shannon scale

Heatmap chart

A heatmap is a graphical representation of data where the individual values contained in a matrix are represented as colors.

• Tool name: cyberchef_heatmap_chart
• Input / output: string → html

Argument	Type	Default
record_delimiter	option	Line feed
field_delimiter	option	Space
number_of_vertical_bins	number	25
number_of_horizontal_bins	number	25
use_column_headers_as_labels	boolean	true
x_label	string	—
y_label	string	—
draw_bin_edges	boolean	false
min_colour_value	string	white
max_colour_value	string	black

Hex Density chart

Hex density charts are used in a similar way to scatter charts, however rather than rendering tens of thousands of points, it groups the points into a few hundred hexagons to show the distribution.

• Tool name: cyberchef_hex_density_chart
• Input / output: string → html

Argument	Type	Default
record_delimiter	option	Line feed
field_delimiter	option	Space
pack_radius	number	25
draw_radius	number	15
use_column_headers_as_labels	boolean	true
x_label	string	—
y_label	string	—
draw_hexagon_edges	boolean	false
min_colour_value	string	white
max_colour_value	string	black
draw_empty_hexagons_within_data_boundaries	boolean	false

Scatter chart

Plots two-variable data as single points on a graph.

• Tool name: cyberchef_scatter_chart
• Input / output: string → html

Argument	Type	Default
record_delimiter	option	Line feed
field_delimiter	option	Space
use_column_headers_as_labels	boolean	true
x_label	string	—
y_label	string	—
colour	string	black
point_radius	number	10
use_colour_from_third_column	boolean	false

Series chart

A time series graph is a line graph of repeated measurements taken over regular time intervals.

• Tool name: cyberchef_series_chart
• Input / output: string → html

Argument	Type	Default
record_delimiter	option	Line feed
field_delimiter	option	Space
x_label	string	—
point_radius	number	1
series_colours	string	mediumseagreen, dodgerblue, tomato