UnicodeDecoder

KOI8-R vs ISO-8859-5 (Cyrillic)

KOI8-R vs ISO-8859-5 (Cyrillic)

KOI8-R

Legacy

Russian character encoding widely used in Unix systems and early internet. Designed so that stripping the high bit gives readable (if lowercase) ASCII. Still encountered in Russian email and Usenet archives.

IANA Name
KOI8-R
Byte Width
1–1 bytes
Introduced
1993

ISO-8859-5 (Cyrillic)

Legacy

ISO standard for Cyrillic script. Covers Russian, Bulgarian, Serbian, Macedonian, and other languages. Largely replaced by KOI8-R in Russia and by UTF-8 globally.

IANA Name
ISO-8859-5
Byte Width
1–1 bytes
Introduced
1988
195
Shared characters
61
Only in KOI8-R
61
Only in ISO-8859-5 (Cyrillic)

Shared Characters (first 195 shown)

Char Codepoint Name KOI8-R ISO-8859-5 (Cyrillic)
U+0000 00 00
U+0001 01 01
U+0002 02 02
U+0003 03 03
U+0004 04 04
U+0005 05 05
U+0006 06 06
U+0007 07 07
U+0008 08 08
U+0009 09 09
U+000A 0A 0A
U+000B 0B 0B
U+000C 0C 0C
U+000D 0D 0D
U+000E 0E 0E
U+000F 0F 0F
U+0010 10 10
U+0011 11 11
U+0012 12 12
U+0013 13 13
U+0014 14 14
U+0015 15 15
U+0016 16 16
U+0017 17 17
U+0018 18 18
U+0019 19 19
U+001A 1A 1A
U+001B 1B 1B
U+001C 1C 1C
U+001D 1D 1D
U+001E 1E 1E
U+001F 1F 1F
U+0020 SPACE 20 20
! U+0021 EXCLAMATION MARK 21 21
" U+0022 QUOTATION MARK 22 22
# U+0023 NUMBER SIGN 23 23
$ U+0024 DOLLAR SIGN 24 24
% U+0025 PERCENT SIGN 25 25
& U+0026 AMPERSAND 26 26
' U+0027 APOSTROPHE 27 27
( U+0028 LEFT PARENTHESIS 28 28
) U+0029 RIGHT PARENTHESIS 29 29
* U+002A ASTERISK 2A 2A
+ U+002B PLUS SIGN 2B 2B
, U+002C COMMA 2C 2C
- U+002D HYPHEN-MINUS 2D 2D
. U+002E FULL STOP 2E 2E
/ U+002F SOLIDUS 2F 2F
0 U+0030 DIGIT ZERO 30 30
1 U+0031 DIGIT ONE 31 31
2 U+0032 DIGIT TWO 32 32
3 U+0033 DIGIT THREE 33 33
4 U+0034 DIGIT FOUR 34 34
5 U+0035 DIGIT FIVE 35 35
6 U+0036 DIGIT SIX 36 36
7 U+0037 DIGIT SEVEN 37 37
8 U+0038 DIGIT EIGHT 38 38
9 U+0039 DIGIT NINE 39 39
: U+003A COLON 3A 3A
; U+003B SEMICOLON 3B 3B
< U+003C LESS-THAN SIGN 3C 3C
= U+003D EQUALS SIGN 3D 3D
> U+003E GREATER-THAN SIGN 3E 3E
? U+003F QUESTION MARK 3F 3F
@ U+0040 COMMERCIAL AT 40 40
A U+0041 LATIN CAPITAL LETTER A 41 41
B U+0042 LATIN CAPITAL LETTER B 42 42
C U+0043 LATIN CAPITAL LETTER C 43 43
D U+0044 LATIN CAPITAL LETTER D 44 44
E U+0045 LATIN CAPITAL LETTER E 45 45
F U+0046 LATIN CAPITAL LETTER F 46 46
G U+0047 LATIN CAPITAL LETTER G 47 47
H U+0048 LATIN CAPITAL LETTER H 48 48
I U+0049 LATIN CAPITAL LETTER I 49 49
J U+004A LATIN CAPITAL LETTER J 4A 4A
K U+004B LATIN CAPITAL LETTER K 4B 4B
L U+004C LATIN CAPITAL LETTER L 4C 4C
M U+004D LATIN CAPITAL LETTER M 4D 4D
N U+004E LATIN CAPITAL LETTER N 4E 4E
O U+004F LATIN CAPITAL LETTER O 4F 4F
P U+0050 LATIN CAPITAL LETTER P 50 50
Q U+0051 LATIN CAPITAL LETTER Q 51 51
R U+0052 LATIN CAPITAL LETTER R 52 52
S U+0053 LATIN CAPITAL LETTER S 53 53
T U+0054 LATIN CAPITAL LETTER T 54 54
U U+0055 LATIN CAPITAL LETTER U 55 55
V U+0056 LATIN CAPITAL LETTER V 56 56
W U+0057 LATIN CAPITAL LETTER W 57 57
X U+0058 LATIN CAPITAL LETTER X 58 58
Y U+0059 LATIN CAPITAL LETTER Y 59 59
Z U+005A LATIN CAPITAL LETTER Z 5A 5A
[ U+005B LEFT SQUARE BRACKET 5B 5B
\ U+005C REVERSE SOLIDUS 5C 5C
] U+005D RIGHT SQUARE BRACKET 5D 5D
^ U+005E CIRCUMFLEX ACCENT 5E 5E
_ U+005F LOW LINE 5F 5F
` U+0060 GRAVE ACCENT 60 60
a U+0061 LATIN SMALL LETTER A 61 61
b U+0062 LATIN SMALL LETTER B 62 62
c U+0063 LATIN SMALL LETTER C 63 63
d U+0064 LATIN SMALL LETTER D 64 64
e U+0065 LATIN SMALL LETTER E 65 65
f U+0066 LATIN SMALL LETTER F 66 66
g U+0067 LATIN SMALL LETTER G 67 67
h U+0068 LATIN SMALL LETTER H 68 68
i U+0069 LATIN SMALL LETTER I 69 69
j U+006A LATIN SMALL LETTER J 6A 6A
k U+006B LATIN SMALL LETTER K 6B 6B
l U+006C LATIN SMALL LETTER L 6C 6C
m U+006D LATIN SMALL LETTER M 6D 6D
n U+006E LATIN SMALL LETTER N 6E 6E
o U+006F LATIN SMALL LETTER O 6F 6F
p U+0070 LATIN SMALL LETTER P 70 70
q U+0071 LATIN SMALL LETTER Q 71 71
r U+0072 LATIN SMALL LETTER R 72 72
s U+0073 LATIN SMALL LETTER S 73 73
t U+0074 LATIN SMALL LETTER T 74 74
u U+0075 LATIN SMALL LETTER U 75 75
v U+0076 LATIN SMALL LETTER V 76 76
w U+0077 LATIN SMALL LETTER W 77 77
x U+0078 LATIN SMALL LETTER X 78 78
y U+0079 LATIN SMALL LETTER Y 79 79
z U+007A LATIN SMALL LETTER Z 7A 7A
{ U+007B LEFT CURLY BRACKET 7B 7B
| U+007C VERTICAL LINE 7C 7C
} U+007D RIGHT CURLY BRACKET 7D 7D
~ U+007E TILDE 7E 7E
U+007F 7F 7F
  U+00A0 NO-BREAK SPACE 9A A0
Ё U+0401 CYRILLIC CAPITAL LETTER IO B3 A1
А U+0410 CYRILLIC CAPITAL LETTER A E1 B0
Б U+0411 CYRILLIC CAPITAL LETTER BE E2 B1
В U+0412 CYRILLIC CAPITAL LETTER VE F7 B2
Г U+0413 CYRILLIC CAPITAL LETTER GHE E7 B3
Д U+0414 CYRILLIC CAPITAL LETTER DE E4 B4
Е U+0415 CYRILLIC CAPITAL LETTER IE E5 B5
Ж U+0416 CYRILLIC CAPITAL LETTER ZHE F6 B6
З U+0417 CYRILLIC CAPITAL LETTER ZE FA B7
И U+0418 CYRILLIC CAPITAL LETTER I E9 B8
Й U+0419 CYRILLIC CAPITAL LETTER SHORT I EA B9
К U+041A CYRILLIC CAPITAL LETTER KA EB BA
Л U+041B CYRILLIC CAPITAL LETTER EL EC BB
М U+041C CYRILLIC CAPITAL LETTER EM ED BC
Н U+041D CYRILLIC CAPITAL LETTER EN EE BD
О U+041E CYRILLIC CAPITAL LETTER O EF BE
П U+041F CYRILLIC CAPITAL LETTER PE F0 BF
Р U+0420 CYRILLIC CAPITAL LETTER ER F2 C0
С U+0421 CYRILLIC CAPITAL LETTER ES F3 C1
Т U+0422 CYRILLIC CAPITAL LETTER TE F4 C2
У U+0423 CYRILLIC CAPITAL LETTER U F5 C3
Ф U+0424 CYRILLIC CAPITAL LETTER EF E6 C4
Х U+0425 CYRILLIC CAPITAL LETTER HA E8 C5
Ц U+0426 CYRILLIC CAPITAL LETTER TSE E3 C6
Ч U+0427 CYRILLIC CAPITAL LETTER CHE FE C7
Ш U+0428 CYRILLIC CAPITAL LETTER SHA FB C8
Щ U+0429 CYRILLIC CAPITAL LETTER SHCHA FD C9
Ъ U+042A CYRILLIC CAPITAL LETTER HARD SIGN FF CA
Ы U+042B CYRILLIC CAPITAL LETTER YERU F9 CB
Ь U+042C CYRILLIC CAPITAL LETTER SOFT SIGN F8 CC
Э U+042D CYRILLIC CAPITAL LETTER E FC CD
Ю U+042E CYRILLIC CAPITAL LETTER YU E0 CE
Я U+042F CYRILLIC CAPITAL LETTER YA F1 CF
а U+0430 CYRILLIC SMALL LETTER A C1 D0
б U+0431 CYRILLIC SMALL LETTER BE C2 D1
в U+0432 CYRILLIC SMALL LETTER VE D7 D2
г U+0433 CYRILLIC SMALL LETTER GHE C7 D3
д U+0434 CYRILLIC SMALL LETTER DE C4 D4
е U+0435 CYRILLIC SMALL LETTER IE C5 D5
ж U+0436 CYRILLIC SMALL LETTER ZHE D6 D6
з U+0437 CYRILLIC SMALL LETTER ZE DA D7
и U+0438 CYRILLIC SMALL LETTER I C9 D8
й U+0439 CYRILLIC SMALL LETTER SHORT I CA D9
к U+043A CYRILLIC SMALL LETTER KA CB DA
л U+043B CYRILLIC SMALL LETTER EL CC DB
м U+043C CYRILLIC SMALL LETTER EM CD DC
н U+043D CYRILLIC SMALL LETTER EN CE DD
о U+043E CYRILLIC SMALL LETTER O CF DE
п U+043F CYRILLIC SMALL LETTER PE D0 DF
р U+0440 CYRILLIC SMALL LETTER ER D2 E0
с U+0441 CYRILLIC SMALL LETTER ES D3 E1
т U+0442 CYRILLIC SMALL LETTER TE D4 E2
у U+0443 CYRILLIC SMALL LETTER U D5 E3
ф U+0444 CYRILLIC SMALL LETTER EF C6 E4
х U+0445 CYRILLIC SMALL LETTER HA C8 E5
ц U+0446 CYRILLIC SMALL LETTER TSE C3 E6
ч U+0447 CYRILLIC SMALL LETTER CHE DE E7
ш U+0448 CYRILLIC SMALL LETTER SHA DB E8
щ U+0449 CYRILLIC SMALL LETTER SHCHA DD E9
ъ U+044A CYRILLIC SMALL LETTER HARD SIGN DF EA
ы U+044B CYRILLIC SMALL LETTER YERU D9 EB
ь U+044C CYRILLIC SMALL LETTER SOFT SIGN D8 EC
э U+044D CYRILLIC SMALL LETTER E DC ED
ю U+044E CYRILLIC SMALL LETTER YU C0 EE
я U+044F CYRILLIC SMALL LETTER YA D1 EF
ё U+0451 CYRILLIC SMALL LETTER IO A3 F1
Other Comparisons
KOI8-R Reference ISO-8859-5 (Cyrillic) Reference All Encodings Swap comparison →