HTML: Entities or characters to encode in Html

Question:

What characters browsers do not like?
Do you have a list of entity code for common characters?

Answer:

The standard list for character encoding if you are not in Unicode is ISO 8859-1.

Html uses < > " ' & in its own syntax. You must encode these characters.

Most other characters are rendered correctly on modern browsers with unicode support.

Character	Entity Number	Entity Name	Description
"	"	"	quotation mark
'	'	' (does not work in IE)	apostrophe
&	&	&	ampersand
<	&#60;	&lt;	less-than
>	&#62;	&gt;	greater-than
	&#160;	&nbsp;	non-breaking space
¡	&#161;	&iexcl;	inverted exclamation mark
¢	&#162;	&cent;	cent
£	&#163;	&pound;	pound
¤	&#164;	&curren;	currency
¥	&#165;	&yen;	yen
¦	&#166;	&brvbar;	broken vertical bar
§	&#167;	&sect;	section
¨	&#168;	&uml;	spacing diaeresis
©	&#169;	&copy;	copyright
ª	&#170;	&ordf;	feminine ordinal indicator
«	&#171;	&laquo;	angle quotation mark (left)
¬	&#172;	&not;	negation
­	&#173;	&shy;	soft hyphen
®	&#174;	&reg;	registered trademark
¯	&#175;	&macr;	spacing macron
°	&#176;	&deg;	degree
±	&#177;	&plusmn;	plus-or-minus
²	&#178;	&sup2;	superscript 2
³	&#179;	&sup3;	superscript 3
´	&#180;	&acute;	spacing acute
µ	&#181;	&micro;	micro
¶	&#182;	&para;	paragraph
·	&#183;	&middot;	middle dot
¸	&#184;	&cedil;	spacing cedilla
¹	&#185;	&sup1;	superscript 1
º	&#186;	&ordm;	masculine ordinal indicator
»	&#187;	&raquo;	angle quotation mark (right)
¼	&#188;	&frac14;	fraction 1/4
½	&#189;	&frac12;	fraction 1/2
¾	&#190;	&frac34;	fraction 3/4
¿	&#191;	&iquest;	inverted question mark
×	&#215;	&times;	multiplication
÷	&#247;	&divide;	division

ISO 8859-1 Characters

Character	Entity Number	Entity Name	Description
À	À	À	capital a, grave accent
Á	Á	Á	capital a, acute accent
Â	Â	Â	capital a, circumflex accent
Ã	Ã	Ã	capital a, tilde
Ä	Ä	Ä	capital a, umlaut mark
Å	Å	Å	capital a, ring
Æ	Æ	Æ	capital ae
Ç	Ç	Ç	capital c, cedilla
È	È	È	capital e, grave accent
É	É	É	capital e, acute accent
Ê	Ê	Ê	capital e, circumflex accent
Ë	Ë	Ë	capital e, umlaut mark
Ì	Ì	Ì	capital i, grave accent
Í	Í	Í	capital i, acute accent
Î	Î	Î	capital i, circumflex accent
Ï	Ï	Ï	capital i, umlaut mark
Ð	Ð	Ð	capital eth, Icelandic
Ñ	Ñ	Ñ	capital n, tilde
Ò	Ò	Ò	capital o, grave accent
Ó	Ó	Ó	capital o, acute accent
Ô	Ô	Ô	capital o, circumflex accent
Õ	Õ	Õ	capital o, tilde
Ö	Ö	Ö	capital o, umlaut mark
Ø	Ø	Ø	capital o, slash
Ù	Ù	Ù	capital u, grave accent
Ú	Ú	Ú	capital u, acute accent
Û	Û	Û	capital u, circumflex accent
Ü	Ü	Ü	capital u, umlaut mark
Ý	Ý	Ý	capital y, acute accent
Þ	Þ	Þ	capital THORN, Icelandic
ß	ß	ß	small sharp s, German
à	à	à	small a, grave accent
á	á	á	small a, acute accent
â	â	â	small a, circumflex accent
ã	ã	ã	small a, tilde
ä	ä	ä	small a, umlaut mark
å	å	å	small a, ring
æ	æ	æ	small ae
ç	ç	ç	small c, cedilla
è	è	è	small e, grave accent
é	é	é	small e, acute accent
ê	ê	ê	small e, circumflex accent
ë	ë	ë	small e, umlaut mark
ì	ì	ì	small i, grave accent
í	í	í	small i, acute accent
î	î	î	small i, circumflex accent
ï	ï	ï	small i, umlaut mark
ð	ð	ð	small eth, Icelandic
ñ	ñ	ñ	small n, tilde
ò	ò	ò	small o, grave accent
ó	ó	ó	small o, acute accent
ô	ô	ô	small o, circumflex accent
õ	õ	õ	small o, tilde
ö	ö	ö	small o, umlaut mark
ø	ø	ø	small o, slash
ù	ù	ù	small u, grave accent
ú	ú	ú	small u, acute accent
û	û	û	small u, circumflex accent
ü	ü	ü	small u, umlaut mark
ý	ý	ý	small y, acute accent
þ	þ	þ	small thorn, Icelandic
ÿ	ÿ	ÿ	small y, umlaut mark