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.

³	sup3: superscript three (superscript digit three, cubed)
¶	para: pilcrow sign (paragraph sign)
»	raquo: right-pointing double angle quotation mark (right pointing guillemet)
¼	frac14: vulgar fraction one quarter (fraction one quarter)
Ù	Ugrave: Latin capital letter U with grave accent
ì	igrave: Latin small letter i with grave accent
ñ	ntilde: Latin small letter n with tilde
ø	oslash: Latin small letter o with stroke (Latin small letter o slash)
ν	nu: Greek small letter nu
ϒ	upsih: Greek Upsilon with hook symbol
„	bdquo: double low-9 quotation mark
‹	lsaquo: single left-pointing angle quotation mark[g]
›	rsaquo: single right-pointing angle quotation mark[g]
↓	darr: downwards arrow
↔	harr: left right arrow
↵	crarr: downwards arrow with corner leftwards (carriage return)
⇑	uArr: upwards double arrow
∃	exist: there exists
∋	ni: contains as member
◊	loz: lozenge

Wikipedia