All the following encode the Universal Character Set (ISO 10646/Unicode)
- UCS-2:
16 bit encoding of Unicode characters
- UCS-4:
32 bit encoding of Unicode characters
- UTF-7:
7 bit encoding for mail articles
- UTF-8:
8 bit encoding for protocols such as HTTP
- UTF-16:
extends Unicode 16bit representation to 32bit representation
- Comprehensive set of encodings is available from
IANA
