ASCII Table & Converter

The ASCII table

The original 128 codes from 1963. Every later text encoding, including UTF-8, keeps them. Codes below 32, and 127, are control characters. The table names the ones still in use.

  0  0x00  NUL       7  0x07  BEL       8  0x08  BS        9  0x09  TAB
 10  0x0a  LF       13  0x0d  CR       27  0x1b  ESC      32  0x20  SPACE
 33  0x21  !        34  0x22  "        35  0x23  #        36  0x24  $
 37  0x25  %        38  0x26  &        39  0x27  '        40  0x28  (
 41  0x29  )        42  0x2a  *        43  0x2b  +        44  0x2c  ,
 45  0x2d  -        46  0x2e  .        47  0x2f  /        48  0x30  0
 49  0x31  1        50  0x32  2        51  0x33  3        52  0x34  4
 53  0x35  5        54  0x36  6        55  0x37  7        56  0x38  8
 57  0x39  9        58  0x3a  :        59  0x3b  ;        60  0x3c  <
 61  0x3d  =        62  0x3e  >        63  0x3f  ?        64  0x40  @
 65  0x41  A        66  0x42  B        67  0x43  C        68  0x44  D
 69  0x45  E        70  0x46  F        71  0x47  G        72  0x48  H
 73  0x49  I        74  0x4a  J        75  0x4b  K        76  0x4c  L
 77  0x4d  M        78  0x4e  N        79  0x4f  O        80  0x50  P
 81  0x51  Q        82  0x52  R        83  0x53  S        84  0x54  T
 85  0x55  U        86  0x56  V        87  0x57  W        88  0x58  X
 89  0x59  Y        90  0x5a  Z        91  0x5b  [        92  0x5c  \
 93  0x5d  ]        94  0x5e  ^        95  0x5f  _        96  0x60  `
 97  0x61  a        98  0x62  b        99  0x63  c       100  0x64  d
101  0x65  e       102  0x66  f       103  0x67  g       104  0x68  h
105  0x69  i       106  0x6a  j       107  0x6b  k       108  0x6c  l
109  0x6d  m       110  0x6e  n       111  0x6f  o       112  0x70  p
113  0x71  q       114  0x72  r       115  0x73  s       116  0x74  t
117  0x75  u       118  0x76  v       119  0x77  w       120  0x78  x
121  0x79  y       122  0x7a  z       123  0x7b  {       124  0x7c  |
125  0x7d  }       126  0x7e  ~       127  0x7f  DEL

Characters past 127

The converter gives the Unicode code point of any character: “é” is 233, “日” is 26085 and 😀 is 128512.

Questions

Is this limited to the 128 ASCII codes?

The reference table is. The converter isn't: it gives the Unicode code point of any character. Unicode keeps the same numbers for the first 128, so every ASCII code in the table matches.

What are the codes below 32?

Control characters, first made to drive teleprinters: tab, line feed, carriage return and others. Most are unused today. The table names the few that still matter.

Why is an emoji one number here but two escapes in the Unicode Escape tool?

This tool counts characters (Unicode code points), so 😀 is 128512. The Unicode Escape tool writes UTF-16 units, and an emoji needs two of those.