Here are all the printable characters, in collating order:
! " # $ % & ' ( ) * + , - . /
0 1 2 3 4 5 6 7 8 9 : ; < = > ? @
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
[ \ ] ^ _ `
a b c d e f g h i j k l m n o p q r s t u v w x y z
{ | } ~
¡ ¢ £ ¤ ¥ ¦ § ¨ © ª « ¬ ® ¯
° ± ² ³ ´ µ ¶ · ¸ ¹ º » ¼ ½ ¾ ¿
À Á Â Ã Ä Å Æ Ç È É Ê Ë Ì Í Î Ï Ð Ñ Ò Ó Ô Õ Ö
×
Ø Ù Ú Û Ü Ý Þ
ß
à á â ã ä å æ ç è é ê ë ì í î ï ð ñ ò ó ô õ ö
÷
ø ù ú û ü ý þ
ÿ
The first six rows are the ASCII character set.
Note the ordinary ASCII space (before `!') and the ISO Latin-1 non-breaking space (before `¡')
The columns show, in order:
HTML OCTL HEX CMP CHR MEANING
------ + ---- + --- + --- + --- + ------------------------------
� | \000 | =00 | | | Invalid (ASCII NUL)
 | \001 | =01 | | | Unused (ASCII SOH)
 | \002 | =02 | | | Unused (ASCII STX)
 | \003 | =03 | | | Unused (ASCII ETX)
 | \004 | =04 | | | Unused (ASCII EOT)
 | \005 | =05 | | | Unused (ASCII ENQ)
 | \006 | =06 | | | Unused (ASCII ACK)
 | \007 | =07 | | | Unused (ASCII BEL, audible bell)
 | \010 | =08 | | | Unused (ASCII BS, backspace)
	 | \011 | =09 | | | Horizontal tab (ASCII HT)

 | \012 | =0A | | | Line feed (ASCII NL, newline)
 | \013 | =0B | | | Unused (ASCII VT, vertical tab)
 | \014 | =0C | | | Unused (ASCII NP, new page)

 | \015 | =0D | | | Carriage Return (ASCII CR)
 | \016 | =0E | | | Unused (ASCII SO)
 | \017 | =0F | | | Unused (ASCII SI)
 | \020 | =10 | | | Unused (ASCII DLE)
 | \021 | =11 | | | Unused (ASCII DC1)
 | \022 | =12 | | | Unused (ASCII DC2)
 | \023 | =13 | | | Unused (ASCII DC3)
 | \024 | =14 | | | Unused (ASCII DC4)
 | \025 | =15 | | | Unused (ASCII NAK)
 | \026 | =16 | | | Unused (ASCII SYN)
 | \027 | =17 | | | Unused (ASCII ETB)
 | \030 | =18 | | | Unused (ASCII CAN)
 | \031 | =19 | | | Unused (ASCII EM)
 | \032 | =1A | | | Unused (ASCII SUB)
 | \033 | =1B | | | Unused (ASCII ESC, escape)
 | \034 | =1C | | | Unused (ASCII FS)
 | \035 | =1D | | | Unused (ASCII GS)
 | \036 | =1E | | | Unused (ASCII RS)
 | \037 | =1F | | | Unused (ASCII US)
  | \040 | =20 | | ( ) | Space (ASCII SP)
! | \041 | =21 | | (!) | Exclamation mark
" | \042 | =22 | | (") | Quotation mark (")
# | \043 | =23 | | (#) | Number sign
$ | \044 | =24 | | ($) | Dollar sign
% | \045 | =25 | | (%) | Percent sign
& | \046 | =26 | | (&) | Ampersand (&)
' | \047 | =27 | | (') | Apostrophe (right single quote)
( | \050 | =28 | | (() | Left parenthesis
) | \051 | =29 | | ()) | Right parenthesis
* | \052 | =2A | | (*) | Asterisk
+ | \053 | =2B | | (+) | Plus sign
, | \054 | =2C | | (,) | Comma
- | \055 | =2D | | (-) | Hyphen
. | \056 | =2E | | (.) | Period (fullstop)
/ | \057 | =2F | | (/) | Solidus (slash)
0 | \060 | =30 | | (0) | Digit 0
. . .
9 | \071 | =39 | | (9) | Digit 9
: | \072 | =3A | | (:) | Colon
; | \073 | =3B | | (;) | Semi-colon
< | \074 | =3C | | (<) | Less than (<)
= | \075 | =3D | | (=) | Equals sign
> | \076 | =3E | | (>) | Greater than (>)
? | \077 | =3F | | (?) | Question mark
@ | \100 | =40 | | (@) | Commercial at-sign
A | \101 | =41 | | (A) | Uppercase letter A
. . .
Z | \132 | =5A | | (Z) | Uppercase letter Z
[ | \133 | =5B | | ([) | Left square bracket
\ | \134 | =5C | | (\) | Reverse solidus (backslash)
] | \135 | =5D | | (]) | Right square bracket
^ | \136 | =5E | | (^) | Caret
_ | \137 | =5F | | (_) | Horizontal bar (underscore)
` | \140 | =60 | | (`) | Reverse apostrophe (left single quote)
a | \141 | =61 | | (a) | Lowercase letter a
. . .
z | \172 | =7A | | (z) | Lowercase letter z
{ | \173 | =7B | | ({) | Left curly brace
| | \174 | =7C | | (|) | Vertical bar
} | \175 | =7D | | (}) | Right curly brace
~ | \176 | =7E | | (~) | Tilde
 | \177 | =7F | | | Unused (ASCII DEL)
€ | \200 | =80 | | | Unused
 | \201 | =81 | | | Unused
‚ | \202 | =82 | | | Unused
ƒ | \203 | =83 | | | Unused
„ | \204 | =84 | | | Unused
… | \205 | =85 | | | Unused
† | \206 | =86 | | | Unused
‡ | \207 | =87 | | | Unused
ˆ | \210 | =88 | | | Unused
‰ | \211 | =89 | | | Unused
Š | \212 | =8A | | | Unused
‹ | \213 | =8B | | | Unused
Π| \214 | =8C | | | Unused
 | \215 | =8D | | | Unused
Ž | \216 | =8E | | | Unused
 | \217 | =8F | | | Unused
 | \220 | =90 | | | Unused
‘ | \221 | =91 | | | Unused
’ | \222 | =92 | | | Unused
“ | \223 | =93 | | | Unused
” | \224 | =94 | | | Unused
• | \225 | =95 | | | Unused
– | \226 | =96 | | | Unused
— | \227 | =97 | | | Unused
˜ | \230 | =98 | | | Unused
™ | \231 | =99 | | | Unused
š | \232 | =9A | | | Unused
› | \233 | =9B | | | Unused
œ | \234 | =9C | | | Unused
 | \235 | =9D | | | Unused
ž | \236 | =9E | | | Unused
Ÿ | \237 | =9F | | | Unused
  | \240 | =A0 | | ( ) | Non-breaking space ( )
¡ | \241 | =A1 | ! ! | (¡) | Inverted exclamation
¢ | \242 | =A2 | c / | (¢) | Cent sign
£ | \243 | =A3 | l - | (£) | Pound sterling
¤ | \244 | =A4 | o x | (¤) | General currency sign
¥ | \245 | =A5 | y - | (¥) | Yen sign
¦ | \246 | =A6 | | | | (¦) | Broken vertical bar
§ | \247 | =A7 | s o | (§) | Section sign
¨ | \250 | =A8 | " " | (¨) | Umlaut (dieresis)
© | \251 | =A9 | c o | (©) | Copyright
ª | \252 | =AA | - a | (ª) | Feminine ordinal
« | \253 | =AB | < < | («) | Left angle quote, guillemotleft
¬ | \254 | =AC | - , | (¬) | Not sign
­ | \255 | =AD | - - | () | Soft hyphen
® | \256 | =AE | r o | (®) | Registered trademark
¯ | \257 | =AF | ^ - | (¯) | Macron accent
° | \260 | =B0 | ^ * | (°) | Degree sign
± | \261 | =B1 | + - | (±) | Plus or minus
² | \262 | =B2 | ^ 2 | (²) | Superscript two
³ | \263 | =B3 | ^ 3 | (³) | Superscript three
´ | \264 | =B4 | \ \ | (´) | Acute accent
µ | \265 | =B5 | / u | (µ) | Micro sign
¶ | \266 | =B6 | P ! | (¶) | Paragraph sign
· | \267 | =B7 | ^ . | (·) | Middle dot
¸ | \270 | =B8 | , , | (¸) | Cedilla
¹ | \271 | =B9 | ^ 1 | (¹) | Superscript one
º | \272 | =BA | _ o | (º) | Masculine ordinal
» | \273 | =BB | > > | (») | Right angle quote, guillemotright
¼ | \274 | =BC | 1 4 | (¼) | Fraction one-fourth
½ | \275 | =BD | 1 2 | (½) | Fraction one-half
¾ | \276 | =BE | 3 4 | (¾) | Fraction three-fourths
¿ | \277 | =BF | ? ? | (¿) | Inverted question mark
À | \300 | =C0 | A ` | (À) | Capital A, grave accent
Á | \301 | =C1 | A ' | (Á) | Capital A, acute accent
 | \302 | =C2 | A ^ | (Â) | Capital A, circumflex accent
à | \303 | =C3 | A ~ | (Ã) | Capital A, tilde
Ä | \304 | =C4 | A " | (Ä) | Capital A, dieresis or umlaut mark
Å | \305 | =C5 | A * | (Å) | Capital A, ring
Æ | \306 | =C6 | A E | (Æ) | Capital AE dipthong (ligature)
Ç | \307 | =C7 | C , | (Ç) | Capital C, cedilla
È | \310 | =C8 | E ` | (È) | Capital E, grave accent
É | \311 | =C9 | E ' | (É) | Capital E, acute accent
Ê | \312 | =CA | E ^ | (Ê) | Capital E, circumflex accent
Ë | \313 | =CB | E " | (Ë) | Capital E, dieresis or umlaut mark
Ì | \314 | =CC | I ` | (Ì) | Capital I, grave accent
Í | \315 | =CD | I ' | (Í) | Capital I, acute accent
Î | \316 | =CE | I ^ | (Î) | Capital I, circumflex accent
Ï | \317 | =CF | I " | (Ï) | Capital I, dieresis or umlaut mark
Ð | \320 | =D0 | D - | (Ð) | Capital Eth, Icelandic
Ñ | \321 | =D1 | N ~ | (Ñ) | Capital N, tilde
Ò | \322 | =D2 | O ` | (Ò) | Capital O, grave accent
Ó | \323 | =D3 | O ' | (Ó) | Capital O, acute accent
Ô | \324 | =D4 | O ^ | (Ô) | Capital O, circumflex accent
Õ | \325 | =D5 | O ~ | (Õ) | Capital O, tilde
Ö | \326 | =D6 | O " | (Ö) | Capital O, dieresis or umlaut mark
× | \327 | =D7 | x x | (×) | Multiply sign
Ø | \330 | =D8 | O / | (Ø) | Capital O, slash
Ù | \331 | =D9 | U ` | (Ù) | Capital U, grave accent
Ú | \332 | =DA | U ' | (Ú) | Capital U, acute accent
Û | \333 | =DB | U ^ | (Û) | Capital U, circumflex accent
Ü | \334 | =DC | U " | (Ü) | Capital U, dieresis or umlaut mark
Ý | \335 | =DD | Y ' | (Ý) | Capital Y, acute accent
Þ | \336 | =DE | P | | (Þ) | Capital THORN, Icelandic
ß | \337 | =DF | s s | (ß) | Small sharp s, German (sz ligature)
à | \340 | =E0 | a ` | (à) | Small a, grave accent
á | \341 | =E1 | a ' | (á) | Small a, acute accent
â | \342 | =E2 | a ^ | (â) | Small a, circumflex accent
ã | \343 | =E3 | a ~ | (ã) | Small a, tilde
ä | \344 | =E4 | a " | (ä) | Small a, dieresis or umlaut mark
å | \345 | =E5 | a * | (å) | Small a, ring
æ | \346 | =E6 | a e | (æ) | Small ae dipthong (ligature)
ç | \347 | =E7 | c , | (ç) | Small c, cedilla
è | \350 | =E8 | e ` | (è) | Small e, grave accent
é | \351 | =E9 | e ' | (é) | Small e, acute accent
ê | \352 | =EA | e ^ | (ê) | Small e, circumflex accent
ë | \353 | =EB | e " | (ë) | Small e, dieresis or umlaut mark
ì | \354 | =EC | i ` | (ì) | Small i, grave accent
í | \355 | =ED | i ' | (í) | Small i, acute accent
î | \356 | =EE | i ^ | (î) | Small i, circumflex accent
ï | \357 | =EF | i " | (ï) | Small i, dieresis or umlaut mark
ð | \360 | =F0 | d - | (ð) | Small eth, Icelandic
ñ | \361 | =F1 | n ~ | (ñ) | Small n, tilde
ò | \362 | =F2 | o ` | (ò) | Small o, grave accent
ó | \363 | =F3 | o ' | (ó) | Small o, acute accent
ô | \364 | =F4 | o ^ | (ô) | Small o, circumflex accent
õ | \365 | =F5 | o ~ | (õ) | Small o, tilde
ö | \366 | =F6 | o " | (ö) | Small o, dieresis or umlaut mark
÷ | \367 | =F7 | - : | (÷) | Division sign
ø | \370 | =F8 | o / | (ø) | Small o, slash
ù | \371 | =F9 | u ` | (ù) | Small u, grave accent
ú | \372 | =FA | u ' | (ú) | Small u, acute accent
û | \373 | =FB | u ^ | (û) | Small u, circumflex accent
ü | \374 | =FC | u " | (ü) | Small u, dieresis or umlaut mark
ý | \375 | =FD | y ' | (ý) | Small y, acute accent
þ | \376 | =FE | p | | (þ) | Small thorn, Icelandic
ÿ | \377 | =FF | y " | (ÿ) | Small y, dieresis or umlaut mark
HTML entity names are given in the "MEANING" column only for ampersand, quote, less than, and greater than, which are significant in HTML syntax; and for the non-breaking space, which may be confused with ordinary space. HTML entity names exist for many other characters, but they are superfluous: the ISO-8859-1 eight-bit codes will work, by definition, on any browser.
The characters carriage return (ASCII CR) and line feed (ASCII NL, newline) are equivalent; they are treated as whitespace, except in <pre> contexts, where they force a line break. (However, a line feed is ignored if it immediately follows a carriage return.)
The horizontal tab character (ASCII HT) skips to the next tabbing column in <pre> contexts, and is treated as whitespace elsewhere.
The non-breaking space ( ) is honored even in non-<pre> contexts, and can be used to insert extra space between words, images, etc., like this: | |.
Alternative Sun/X11 "Compose" sequences for the Icelandic "thorn" are "t h" (þ, lowercase) and "T H" (Þ, uppercase).
Note that the Sun/X11 "Compose" sequence for masculine ordinal (º) uses an underscore, while the feminine ordinal (ª) uses a minus sign. It takes a lot of imagination to come up with such ideas...