Available Encodings

Below is a table of encodings. Here, we track which encodings can be represented using the Lucky 7 technique, whether or not we have produced such an implementation, and (if applicable) a link to said implementation.

Most are table-driven encodings, but a select few are not. Tables and data for this are included as part of the Encoding Tables repository.

As a general point, we hope to support almost all of the encodings here in one form or another! If you’d like to request prioritization of a certain encoding, let us know.

Encoding Progress Table

Name	Stateful	Implementable?	Implemented
UTF-8	No	Yes	Yes ✅
UTF-16	No	Yes	Yes ✅
UTF-32	No	Yes	Yes ✅
Modified UTF-8 (MUTF-8)	No	Yes	Yes ✅
Wobbly Transformation Format-8 (WTF-8)	No	Yes	Yes ✅
ASCII	No	Yes	Yes ✅
C Locale	Yes (std::mbstate_t)	Yes	Yes ✅
C Locale, Wide	Yes (std::mbstate_t)	Yes	Yes ✅
String Literals	Compiler-Dependent	Yes	Yes ✅
Wide String Literals	Compiler-Dependent	Yes	Yes ✅
“Anything” Wrapper	Typed-Erased	Yes	Yes ✅
Encoding Scheme	Wrapping-Dependent	Yes	Yes ✅
iconv Encoding	Yes	Yes	Yes ✅
cuneicode Encoding	Yes	Yes	Yes ✅
ARMSCII-8	❓ Unresearched	❓ Unconfirmed	No ❌
ATARIST	No	Yes	Yes ✅
BIG5	No	Yes	No ❌
BIG5-2003	No	Yes	No ❌
Big5-HKSCS	No	Yes	Yes ✅
Big5-HKSCS:1999	No	Yes	No ❌
Big5-HKSCS:2001	No	Yes	No ❌
Big5-HKSCS:2004	No	Yes	No ❌
CP737	❓ Unresearched	❓ Unconfirmed	No ❌
CP775	❓ Unresearched	❓ Unconfirmed	No ❌
CP850	❓ Unresearched	❓ Unconfirmed	No ❌
CP852	❓ Unresearched	❓ Unconfirmed	No ❌
CP853	❓ Unresearched	❓ Unconfirmed	No ❌
CP855	❓ Unresearched	❓ Unconfirmed	No ❌
CP857	❓ Unresearched	❓ Unconfirmed	No ❌
CP858	❓ Unresearched	❓ Unconfirmed	No ❌
CP860	❓ Unresearched	❓ Unconfirmed	No ❌
CP861	❓ Unresearched	❓ Unconfirmed	No ❌
CP862	❓ Unresearched	❓ Unconfirmed	No ❌
CP863	❓ Unresearched	❓ Unconfirmed	No ❌
CP864	❓ Unresearched	❓ Unconfirmed	No ❌
CP866	❓ Unresearched	❓ Unconfirmed	No ❌
CP869 (Nice)	❓ Unresearched	❓ Unconfirmed	No ❌
CP932	❓ Unresearched	❓ Unconfirmed	No ❌
CP936	❓ Unresearched	❓ Unconfirmed	No ❌
CP949	❓ Unresearched	❓ Unconfirmed	No ❌
CP1125	❓ Unresearched	❓ Unconfirmed	No ❌
CP1131	❓ Unresearched	❓ Unconfirmed	No ❌
CP1133	❓ Unresearched	❓ Unconfirmed	No ❌
CP1250	❓ Unresearched	❓ Unconfirmed	No ❌
EUC-CN	❓ Unresearched	❓ Unconfirmed	No ❌
EUC-JISX0213	❓ Unresearched	❓ Unconfirmed	No ❌
EUC-JP	❓ Unresearched	❓ Unconfirmed	No ❌
EUC-KR	No	Yes	Yes ✅
EUC-TW	❓ Unresearched	❓ Unconfirmed	No ❌
GB18030 (Unicode-capable)	No	Yes	Yes ✅
GBK	No	Yes	Yes ✅
Georgian-Academy	❓ Unresearched	❓ Unconfirmed	No ❌
Georgian-PS	❓ Unresearched	❓ Unconfirmed	No ❌
HP-ROMAN8	❓ Unresearched	❓ Unconfirmed	No ❌
HZ	❓ Unresearched	❓ Unconfirmed	No ❌
IBM 424 Hebrew (Bulletin)	No	Yes	Yes ✅
IBM 856 Hebrew	No	Yes	Yes ✅
IBM 866 Cyrillic (Russian)	No	Yes	Yes ✅
IBM 1006 Urdu	No	Yes	Yes ✅
ISO-2022-CN	❓ Unresearched	❓ Unconfirmed	No ❌
ISO-2022-CN-EXT	❓ Unresearched	❓ Unconfirmed	No ❌
ISO-2022-JP	❓ Unresearched	❓ Unconfirmed	No ❌
ISO-2022-JP-1	❓ Unresearched	❓ Unconfirmed	No ❌
ISO-2022-JP-2	❓ Unresearched	❓ Unconfirmed	No ❌
ISO-2022-JP-3	❓ Unresearched	❓ Unconfirmed	No ❌
ISO-2022-JP-MS	❓ Unresearched	❓ Unconfirmed	No ❌
ISO-2022-KR	❓ Unresearched	❓ Unconfirmed	No ❌
ISO-8859-1-1985	❓ Unresearched	❓ Unconfirmed	No ❌
ISO-8859-1 (1998)	❓ Unresearched	❓ Unconfirmed	No ❌
ISO-8859-2	No	Yes	Yes ✅
ISO-8859-3	No	Yes	Yes ✅
ISO-8859-4	No	Yes	Yes ✅
ISO-8859-5	No	Yes	Yes ✅
ISO-8859-6	No	Yes	Yes ✅
ISO-8859-7	No	Yes	Yes ✅
ISO-8859-8	No	Yes	Yes ✅
ISO-8859-9	❓ Unresearched	❓ Unconfirmed	No ❌
ISO-8859-10	No	Yes	Yes ✅
ISO-8859-13	No	Yes	Yes ✅
ISO-8859-14	No	Yes	Yes ✅
ISO-8859-15	No	Yes	Yes ✅
ISO-8859-16	No	Yes	Yes ✅
JOHAB	❓ Unresearched	❓ Unconfirmed	No ❌
Kamenicky	No	Yes	Yes ✅
Kazakh-STRK1048 / KZ-1048	No	Yes	Yes ✅
KOI8-U	No	Yes	Yes ✅
KOI8-R	No	Yes	Yes ✅
MacArabic	❓ Unresearched	❓ Unconfirmed	No ❌
MacCentralEurope	❓ Unresearched	❓ Unconfirmed	No ❌
MacCroatian	❓ Unresearched	❓ Unconfirmed	No ❌
MacCryllic	No	Yes	Yes ✅
MacGreek	❓ Unresearched	❓ Unconfirmed	No ❌
MacHebrew	❓ Unresearched	❓ Unconfirmed	No ❌
MacIceland	❓ Unresearched	❓ Unconfirmed	No ❌
Macintosh	❓ Unresearched	❓ Unconfirmed	No ❌
MacRoman	No	Yes	Yes ✅
MacRomania	❓ Unresearched	❓ Unconfirmed	No ❌
MacThai	❓ Unresearched	❓ Unconfirmed	No ❌
MacTurkish	❓ Unresearched	❓ Unconfirmed	No ❌
MacUkraine	❓ Unresearched	❓ Unconfirmed	No ❌
MuleLao-1	❓ Unresearched	❓ Unconfirmed	No ❌
NEXTSTEP	❓ Unresearched	❓ Unconfirmed	No ❌
PETSCII (Shifted and Unshifted)	No	Yes	Yes ✅
PT154	❓ Unresearched	❓ Unconfirmed	No ❌
RISCOS-LATIN1	❓ Unresearched	❓ Unconfirmed	No ❌
SHIFT-JIS (AKA SHIFT-JISX0208)	No	Yes	Yes ✅
SHIFT-JISX0208	No	Yes	Yes ✅
SHIFT-JISX0213	Yes, shift states	Yes	No ❌
TACE	No	Yes	No ❌
Tatar (IBM/ASCII)	No	Yes	Yes ✅
Tatar (Windows/ANSI)	No	Yes	Yes ✅
TCVN	❓ Unresearched	❓ Unconfirmed	No ❌
TDS565	❓ Unresearched	❓ Unconfirmed	No ❌
TIS-620	❓ Unresearched	❓ Unconfirmed	No ❌
TSCII	No	Yes	No ❌
UTF-EBCDIC	No	No (Licensed)	No ❌
UTF-7	Yes	No (Licensed)	No ❌
UTF-7-IMAP	Yes	No (Licensed)	No ❌
VISCII	❓ Unresearched	❓ Unconfirmed	No ❌
Windows-437 / DOS Latin-US	No	Yes	Yes ✅
Windows-865 / DOS Nordic	No	Yes	Yes ✅
Windows-874	No	Yes	Yes ✅
Windows-1251	No	Yes	Yes ✅
Windows-1252 / Latin-1	No	Yes	Yes ✅
Windows-1253	Yes	Yes	Yes ✅
Windows-1254	No	Yes	Yes ✅
Windows-1255	No	Yes	Yes ✅
Windows-1256	No	Yes	Yes ✅
Windows-1257	No	Yes	Yes ✅
Windows-1258	No	Yes	Yes ✅

If you know of an encoding not listed here, let us know in the issue tracker!