HTML character map

In HTML (and XML), there are 'character entity reference' that are used to represent non-ASCII characters. E.g. the character '→' can be encoded as →, to use in a non-Unicode-compatible text format. These characters will follow the style and size of your font.
For Emoji characters like 🥁 and 😆, check the Emoji character map.

¼	frac14: vulgar fraction one quarter (fraction one quarter)
É	Eacute: Latin capital letter E with acute accent
Ï	Iuml: Latin capital letter I with diaeresis
ä	auml: Latin small letter a with diaeresis
ñ	ntilde: Latin small letter n with tilde
õ	otilde: Latin small letter o with tilde
ü	uuml: Latin small letter u with diaeresis
š	scaron: Latin small letter s with caron
Ε	Epsilon: Greek capital letter Epsilon
Λ	Lambda: Greek capital letter Lambda
λ	lambda: Greek small letter lambda
π	pi: Greek small letter pi
„	bdquo: double low-9 quotation mark
ℑ	image: black-letter capital I (imaginary part)
℘	weierp: script capital P (power set, Weierstrass p)
↵	crarr: downwards arrow with corner leftwards (carriage return)
⇓	dArr: downwards double arrow
∅	empty: empty set (null set); see also U+8960, ⌀
∋	ni: contains as member
♦	diams: black diamond suit[f]

Wikipedia