charsplit is a small utility tool that will give you information about your string input. It will split the string into its bytes and graphemes, and give you information about them.
$ echo "Hello and привет" | charsplitwill output:
Grapheme Byte in binary Byte in decimal Unicode in decimal Unicode in hex Byte Type Unicode Group
H 1001000 72 72 0x48 Ascii Basic Latin (LatinAlphabet:Uppercase)
e 1100101 101 101 0x65 Ascii Basic Latin (LatinAlphabet:Lowercase)
l 1101100 108 108 0x6C Ascii Basic Latin (LatinAlphabet:Lowercase)
l 1101100 108 108 0x6C Ascii Basic Latin (LatinAlphabet:Lowercase)
o 1101111 111 111 0x6F Ascii Basic Latin (LatinAlphabet:Lowercase)
100000 32 32 0x20 Ascii Basic Latin (ASCIIPunctuation& Symbols)
a 1100001 97 97 0x61 Ascii Basic Latin (LatinAlphabet:Lowercase)
n 1101110 110 110 0x6E Ascii Basic Latin (LatinAlphabet:Lowercase)
d 1100100 100 100 0x64 Ascii Basic Latin (LatinAlphabet:Lowercase)
100000 32 32 0x20 Ascii Basic Latin (ASCIIPunctuation& Symbols)
п 11010000 208 1087 0x43F Utf8Base Cyrillic
10111111 191 Utf8Continuation
р 11010001 209 1088 0x440 Utf8Base Cyrillic
10000000 128 Utf8Continuation
и 11010000 208 1080 0x438 Utf8Base Cyrillic
10111000 184 Utf8Continuation
в 11010000 208 1074 0x432 Utf8Base Cyrillic
10110010 178 Utf8Continuation
е 11010000 208 1077 0x435 Utf8Base Cyrillic
10110101 181 Utf8Continuation
т 11010001 209 1090 0x442 Utf8Base Cyrillic
10000010 130 Utf8Continuation
1010 10 10 0xA AsciiNewLine Control codes (C0)