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Cheat sheet

The full table, the escapes and the HTML entities on one page. Prints on A4 or US Letter.

ASCII at a glance

asciitable.co · X3.4-1967

Table 1Columns are the top three bits, rows the bottom four. Each cell: hex, character, decimal.
	0_000	1_001	2_010	3_011	4_100	5_101	6_110	7_111
_00000	00NUL0	10DLE16	20SP32	30048	40@64	50P80	60`96	70p112
_10001	01SOH1	11DC117	21!33	31149	41A65	51Q81	61a97	71q113
_20010	02STX2	12DC218	22"34	32250	42B66	52R82	62b98	72r114
_30011	03ETX3	13DC319	23#35	33351	43C67	53S83	63c99	73s115
_40100	04EOT4	14DC420	24$36	34452	44D68	54T84	64d100	74t116
_50101	05ENQ5	15NAK21	25%37	35553	45E69	55U85	65e101	75u117
_60110	06ACK6	16SYN22	26&38	36654	46F70	56V86	66f102	76v118
_70111	07BEL7	17ETB23	27'39	37755	47G71	57W87	67g103	77w119
_81000	08BS8	18CAN24	28(40	38856	48H72	58X88	68h104	78x120
_91001	09HT9	19EM25	29)41	39957	49I73	59Y89	69i105	79y121
_A1010	0ALF10	1ASUB26	2A*42	3A:58	4AJ74	5AZ90	6Aj106	7Az122
_B1011	0BVT11	1BESC27	2B+43	3B;59	4BK75	5B[91	6Bk107	7B{123
_C1100	0CFF12	1CFS28	2C,44	3C<60	4CL76	5C\92	6Cl108	7C\|124
_D1101	0DCR13	1DGS29	2D-45	3D=61	4DM77	5D]93	6Dm109	7D}125
_E1110	0ESO14	1ERS30	2E.46	3E>62	4EN78	5E^94	6En110	7E~126
_F1111	0FSI15	1FUS31	2F/47	3F?63	4FO79	5F_95	6Fo111	7FDEL127

C / JS escapes
\0	0x00	Null
\a	0x07	Bell
\b	0x08	Backspace
\t	0x09	Horizontal tab
\n	0x0A	Line feed
\v	0x0B	Vertical tab
\f	0x0C	Form feed
\r	0x0D	Carriage return
\"	0x22	Quotation mark
\'	0x27	Apostrophe
\\	0x5C	Reverse solidus
\xHH	any	Any byte, by hex

HTML entities
"	"	Quotation mark
&	&	Ampersand
'	'	Apostrophe
<	<	Less-than sign
>	>	Greater-than sign
&#N;	any	Any character, by decimal code

Bit tricks
c ^ 0x20	Flip a letter’s case
c & ~0x40	Ctrl: @ A–Z [ \ ] ^ _ to 0x00–0x1F
c & 0x0F	A digit’s value
c - 0x30	The same, for 0–9