xd(1) is a tool that dumps binary input in a variety of formats.
> rustup default 1.46.0
> cargo install xd
> xd --example
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F ␀☺☻♥♦♣♠•◘○◙♂♀♪♫☼ 0
10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F ►◄↕‼¶§▬↨↑↓→←∟↔▲▼ 10
20 21 22 23 24 25 26 27 28 29 2A 2B 2C 2D 2E 2F !"#$%&'()*+,-./ 20
30 31 32 33 34 35 36 37 38 39 3A 3B 3C 3D 3E 3F 0123456789:;<=>? 30
40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E 4F @ABCDEFGHIJKLMNO 40
50 51 52 53 54 55 56 57 58 59 5A 5B 5C 5D 5E 5F PQRSTUVWXYZ[\]^_ 50
60 61 62 63 64 65 66 67 68 69 6A 6B 6C 6D 6E 6F `abcdefghijklmno 60
70 71 72 73 74 75 76 77 78 79 7A 7B 7C 7D 7E 7F pqrstuvwxyz{|}~⌂ 70
80 81 82 83 84 85 86 87 88 89 8A 8B 8C 8D 8E 8F ÇüéâäàåçêëèïîìÄÅ 80
90 91 92 93 94 95 96 97 98 99 9A 9B 9C 9D 9E 9F ÉæÆôöòûùÿÖÜ¢£¥₧ƒ 90
A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 AA AB AC AD AE AF áíóúñѪº¿⌐¬½¼¡«» A0
B0 B1 B2 B3 B4 B5 B6 B7 B8 B9 BA BB BC BD BE BF ░▒▓│┤╡╢╖╕╣║╗╝╜╛┐ B0
C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 CA CB CC CD CE CF └┴┬├─┼╞╟╚╔╩╦╠═╬╧ C0
D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 DA DB DC DD DE DF ╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀ D0
E0 E1 E2 E3 E4 E5 E6 E7 E8 E9 EA EB EC ED EE EF αßΓπΣσµτΦΘΩδ∞φε∩ E0
F0 F1 F2 F3 F4 F5 F6 F7 F8 F9 FA FB FC FD FE FF ≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ F0
The default format describes up to 16 octets on each line, in both hexadecimal and text, and the latter with a tweaked code page 437, like on an old IBM PC.
This encoding provides a unique glyph for each octet, making it reversible, and almost all of those glyphs are visually distinct, which is helpful when visualising patterns in binary data that transcends printable ASCII.
#[no_std]