| Name | Standard | Description |
| Adler32 | M. Adler |
An irreversible 32-bit checksum of a string. Similar to CRC32, but faster and weaker. Used in the popular zlib compression library |
| ASCII | ANSI |
Each 8-bit byte (octet) represented as an ASCII character from 0 to 255 |
| Base64 | RFC 4648 |
A 6-bit Base64-encoded string, each byte from A to /, in the order of (A-Z, a-z, 0-9, +, /) |
| Binary | Traditional |
Each byte a binary value from 00000000 to 11111111 |
| CRC32 | ITU-T V.42 |
32-bit CRC checksum. 0x04C11DB7 polynomial, 0xFFFFFFFF initial value, 0xFFFFFFFF final XOR value, nonreversed. AKA CCITT-32 |
| CRC16 | ITU-T V.41 |
16-bit CRC checksum. 0x1021 polynomial, 0xFFFF initial value, 0x0000 final XOR value, nonreversed. AKA CCITT-16 or CRC-CCITT |
| CRC8 | ITU-T |
8-bit CRC checksum. 0x07 polynomial, 0x00 initial value, 0x00 final XOR value, nonreversed. AKA CCITT-8 |
| Decimal | Traditional |
Each byte a decimal value from 000 to 255 |
| Hexadecimal | Traditional |
Each byte a hex value from 00 to FF |
| MD5 | RFC 1321 |
An irreversible 128-bit MD5 hash of a string (32 bytes) |
| MD5 Short | P. Tkachenko |
Same as MD5, but stored in 24 case-sensitive bytes |
| Octal | Traditional |
Each byte an octal value from 000 to 377 |
| SHA1 | RFC 3174 |
An irreversible 160-bit SHA-1 hash of a string (40 bytes) |
| URI | RFC 3986 |
A string percent-encoded as a valid URI (or URL). The following 172 characters are encoded: 0x00-0x20, 0x7F-0xFF, " % ; > < [ \ ] ^ ` { | }. The following 72 characters are left alone: 0-9, A-Z, a-z, , / ? : @ & = + $ # |
| URI Component | RFC 3986 |
Same as URI, only with ten additional characters encoded: , / ? : @ & = + $ #. The following 62 characters are left alone: 0-9, A-Z, a-z |