Base62

Base62 is a binary-to-text encoding that represents arbitrary data (including binary data) as ASCII text. It encodes data as the 62 letters and digits of ASCII – capital letters A-Z, lower case letters a-z and digits 0–9.

123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz
= 58 characters = base58

0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
= 62 characters = base62

0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz+/
= 64 characters = base64

Alphabet

The Base62 alphabet:

Value	Char		Value	Char		Value	Char		Value	Char
0	0		16	G		32	W		48	m
1	1		17	H		33	X		49	n
2	2		18	I		34	Y		50	o
3	3		19	J		35	Z		51	p
4	4		20	K		36	a		52	q
5	5		21	L		37	b		53	r
6	6		22	M		38	c		54	s
7	7		23	N		39	d		55	t
8	8		24	O		40	e		56	u
9	9		25	P		41	f		57	v
10	A		26	Q		42	g		58	w
11	B		27	R		43	h		59	x
12	C		28	S		44	i		60	y
13	D		29	T		45	j		61	z
14	E		30	U		46	k
15	F		31	V		47	l

See also

• List of numeral systems