The constructors for TextDecoder and TextDecoderStream can be passed an optional label, representing the encoding to be used. The default is UTF-8.
The following table lists all encoding names and labels that user agents must support, as defined in the Encoding Spec. These are generally applicable anywhere character encodings are used.
| Label | Encoding |
|---|---|
"unicode-1-1-utf-8", "utf-8", "utf8"
|
'utf-8' |
"866", "cp866", "csibm866",
"ibm866" |
'ibm866' |
"csisolatin2", "iso-8859-2",
"iso-ir-101", "iso8859-2", "iso88592",
"iso_8859-2", "iso_8859-2:1987", "l2",
"latin2" |
'iso-8859-2'
|
"csisolatin3", "iso-8859-3",
"iso-ir-109", "iso8859-3", "iso88593",
"iso_8859-3", "iso_8859-3:1988", "l3",
"latin3" |
'iso-8859-3'
|
"csisolatin4", "iso-8859-4",
"iso-ir-110", "iso8859-4", "iso88594",
"iso_8859-4", "iso_8859-4:1988", "l4",
"latin4" |
'iso-8859-4'
|
"csisolatincyrillic", "cyrillic",
"iso-8859-5", "iso-ir-144", "iso88595",
"iso_8859-5", "iso_8859-5:1988" |
'iso-8859-5'
|
"arabic", "asmo-708", "csiso88596e",
"csiso88596i", "csisolatinarabic",
"ecma-114", "iso-8859-6",
"iso-8859-6-e", "iso-8859-6-i",
"iso-ir-127", "iso8859-6", "iso88596",
"iso_8859-6", "iso_8859-6:1987" |
'iso-8859-6'
|
"csisolatingreek", "ecma-118",
"elot_928", "greek", "greek8",
"iso-8859-7", "iso-ir-126",
"iso8859-7", "iso88597", "iso_8859-7",
"iso_8859-7:1987", "sun_eu_greek" |
'iso-8859-7'
|
"csiso88598e", "csisolatinhebrew",
"hebrew", "iso-8859-8", "iso-8859-8-e",
"iso-ir-138", "iso8859-8", "iso88598",
"iso_8859-8", "iso_8859-8:1988",
"visual" |
'iso-8859-8'
|
"csiso88598i", "iso-8859-8-i",
"logical" |
'iso-8859-8i'
|
"csisolatin6", "iso-8859-10",
"iso-ir-157", "iso8859-10",
"iso885910", "l6", "latin6" |
'iso-8859-10'
|
"iso-8859-13", "iso8859-13",
"iso885913" |
'iso-8859-13'
|
"iso-8859-14", "iso8859-14",
"iso885914" |
'iso-8859-14'
|
"csisolatin9", "iso-8859-15",
"iso8859-15", "iso885915", "l9",
"latin9" |
'iso-8859-15'
|
"iso-8859-16" |
'iso-8859-16'
|
"cskoi8r", "koi", "koi8",
"koi8-r", "koi8_r" |
'koi8-r' |
"koi8-u" |
'koi8-u' |
"csmacintosh", "mac", "macintosh",
"x-mac-roman" |
'macintosh' |
"dos-874", "iso-8859-11",
"iso8859-11", "iso885911", "tis-620",
"windows-874" |
'windows-874' |
"cp1250", "windows-1250", "x-cp1250"
|
'windows-1250'
|
"cp1251", "windows-1251", "x-cp1251"
|
'windows-1251'
|
"ansi_x3.4-1968", "ascii", "cp1252",
"cp819", "csisolatin1", "ibm819",
"iso-8859-1", "iso-ir-100",
"iso8859-1", "iso88591", "iso_8859-1",
"iso_8859-1:1987", "l1", "latin1",
"us-ascii", "windows-1252", "x-cp1252"
|
'windows-1252'
|
"cp1253", "windows-1253", "x-cp1253"
|
'windows-1253'
|
"cp1254", "csisolatin5",
"iso-8859-9", "iso-ir-148",
"iso8859-9", "iso88599", "iso_8859-9",
"iso_8859-9:1989", "l5", "latin5",
"windows-1254", "x-cp1254" |
'windows-1254'
|
"cp1255", "windows-1255", "x-cp1255"
|
'windows-1255'
|
"cp1256", "windows-1256", "x-cp1256"
|
'windows-1256'
|
"cp1257", "windows-1257", "x-cp1257"
|
'windows-1257'
|
"cp1258", "windows-1258", "x-cp1258"
|
'windows-1258'
|
"x-mac-cyrillic", "x-mac-ukrainian" |
'x-mac-cyrillic'
|
"chinese", "csgb2312",
"csiso58gb231280", "gb2312", "gb_2312",
"gb_2312-80", "gbk", "iso-ir-58",
"x-gbk" |
'gbk' |
"gb18030" |
'gb18030' |
"hz-gb-2312" |
'hz-gb-2312'
|
"big5", "big5-hkscs", "cn-big5",
"csbig5", "x-x-big5" |
'big5' |
"cseucpkdfmtjapanese", "euc-jp",
"x-euc-jp" |
'euc-jp'
|
|
" Note: Firefox used to accept |
'iso-2022-jp'
|
"csshiftjis", "ms_kanji",
"shift-jis", "shift_jis", "sjis",
"windows-31j", "x-sjis" |
'shift-jis' |
"cseuckr", "csksc56011987", "euc-kr",
"iso-ir-149", "korean",
"ks_c_5601-1987", "ks_c_5601-1989",
"ksc5601", "ksc_5601", "windows-949"
|
'euc-kr'
|
"csiso2022kr", "iso-2022-kr" |
'iso-2022-kr'
|
"utf-16be" |
'utf-16be'
|
"utf-16", "utf-16le" |
'utf-16le'
|
"x-user-defined" |
'x-user-defined' |
"iso-2022-cn", "iso-2022-cn-ext" |
'replacement' |