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Color-coding bytes in hex editors dramatically improves pattern recognition when analyzing binary data. Using 18 color groups based on leading nibble (0X through FX, plus special cases for 00 and FF) makes it easy to spot null bytes, ASCII text, UTF-8 sequences, compressed data, and numeric patterns at a glance. The post demonstrates this with real binary file examples including Huffman-compressed data and bitmap pixel data. It recommends switching from xxd to hexyl, and mentions the author's own Rust/Ratatui hex editor called hexapoda with modal editing and multiple cursors.

your hex editor should color-code bytes

<p>Props to you, thought it was a long winded April fools joke. Turns out it’s an appealing idea visually. Personally I rarely deal with hex colors, the counter part would appreciate this more</p>
