Life & fun · September 1, 2024
Bin-graph: Visualize binary files
This program provides a simple way of visualizing the different regions of a binary file. Written in C, depends only on libpng. Currently (commit 1dd42e3) it is able to generate PNG images that represent various aspects of the binary: - Grayscale: Byte values, 00..FF. - Ascii: Printability of each byte. - Entropy: Of a "block", changed with --block-size. - Histogram: Bar graph of the byte frequencies. - Bigrams: Each point is determined by a pair of bytes. - Dotplot: Measure self-similarity. Image width/height is N^2. In the future, I plan on adding an SDL version that allows the user…
In plain words
Bin-graph is a C program that visualizes binary files by generating PNG images showing different aspects of file structure. It displays byte values as grayscale, printability as ASCII, entropy levels, byte frequency histograms, byte-pair patterns as bigrams, and self-similarity through dotplots. Designed for developers and security researchers who need to analyze binary file composition and patterns, it requires only libpng as a dependency and supports customizable block sizes and file offsets.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
This program provides a simple way of visualizing the different regions of a binary file. Written in C, depends only on libpng. Currently (commit 1dd42e3) it is able to generate PNG images that represent various aspects of the binary: - Grayscale: Byte values, 00..FF. - Ascii: Printability of each byte. - Entropy: Of a "block", changed with --block-size. - Histogram: Bar graph of the byte frequencies. - Bigrams: Each point is determined by a pair of bytes. - Dotplot: Measure self-similarity. Image width/height is N^2. In the future, I plan on adding an SDL version that allows the user to view a section of the file interactively (sections are currently supported with --offset-start and --offset-end). More information on the README.
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