Base64 Character Table Reference

Complete Base64 encoding character table with all 64 characters, their indices, binary values, and ASCII codes.

Last updated: 2026-08-28

index	char	binary	ascii	note
0	A	000000	65
1	B	000001	66
2	C	000010	67
3	D	000011	68
4	E	000100	69
5	F	000101	70
6	G	000110	71
7	H	000111	72
8	I	001000	73
9	J	001001	74
10	K	001010	75
11	L	001011	76
12	M	001100	77
13	N	001101	78
14	O	001110	79
15	P	001111	80
16	Q	010000	81
17	R	010001	82
18	S	010010	83
19	T	010011	84
20	U	010100	85
21	V	010101	86
22	W	010110	87
23	X	010111	88
24	Y	011000	89
25	Z	011001	90
26	a	011010	97
27	b	011011	98
28	c	011100	99
29	d	011101	100
30	e	011110	101
31	f	011111	102
32	g	100000	103
33	h	100001	104
34	i	100010	105
35	j	100011	106
36	k	100100	107
37	l	100101	108
38	m	100110	109
39	n	100111	110
40	o	101000	111
41	p	101001	112
42	q	101010	113
43	r	101011	114
44	s	101100	115
45	t	101101	116
46	u	101110	117
47	v	101111	118
48	w	110000	119
49	x	110001	120
50	y	110010	121
51	z	110011	122
52	0	110100	48
53	1	110101	49
54	2	110110	50
55	3	110111	51
56	4	111000	52
57	5	111001	53
58	6	111010	54
59	7	111011	55
60	8	111100	56
61	9	111101	57
62	+	111110	43
63	/	111111	47
64	=	padding	61	Padding character (not part of the 64-char alphabet), used when input length is not divisible by 3

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