List of all locales and corresponding languages?

[web-programmer-here]

Is there any list of locales and the corresponding languages?
for example

af        Afrikaans
ar-DZ     Algerian Arabic
and so on

[fturmel]

Nothing official that I know of, but you're in luck. I already had a list at hand that was generated using the jdsocs fields of each locale.

It could be a good opportunity for the community to review these fields and bring any corrections or improvements. I am aware of at least three issues:

• fr-CH should be French locale (Switzerland), fix is part of fr, fr-CA and fr-CH locales TypeScript conversion #2626
• nl-BE should be something like Dutch/Fleming (Belgium) Dutch (Belgium)
• ar-SA should be Saudi Arabic, there is a typo in there

This is the data as of version 2.25.0:

Markdown table

code	ISO 639-2 code	summary	language
af	afr	Afrikaans locale	Afrikaans
ar-DZ	ara	Arabic locale (Algerian Arabic)	Algerian Arabic
ar-MA	ara	Arabic locale (Moroccan Arabic)	Moroccan Arabic
ar-SA	ara	Arabic locale (Sauid Arabic)	Arabic
ar-TN	ara	Arabic locale (Tunisian Arabic)	Arabic
az	aze	Azerbaijani locale	Azerbaijani
be	bel	Belarusian locale	Belarusian
bg	bul	Bulgarian locale	Bulgarian
bn	ben	Bengali locale	Bengali
bs	bos	Bosnian locale	Bosnian
ca	cat	Catalan locale	Catalan
cs	ces	Czech locale	Czech
cy	cym	Welsh locale	Welsh
da	dan	Danish locale	Danish
de	deu	German locale	German
de-AT	deu	German locale (Austria)	German
el	ell	Greek locale	Greek
en-AU	eng	English locale (Australia)	English
en-CA	eng	English locale (Canada)	English
en-GB	eng	English locale (United Kingdom)	English
en-IN	eng	English locale (India)	English
en-NZ	eng	English locale (New Zealand)	English
en-US	eng	English locale (United States)	English
en-ZA	eng	English locale (South Africa)	English
eo	epo	Esperanto locale	Esperanto
es	spa	Spanish locale	Spanish
et	est	Estonian locale	Estonian
eu	eus	Basque locale	Basque
fa-IR	ira	Persian/Farsi locale (Iran)	Persian
fi	fin	Finnish locale	Finnish
fr	fra	French locale	French
fr-CA	fra	French locale (Canada)	French
fr-CH	fra	French locale	French
gd	gla	Scottish Gaelic	Scottish Gaelic
gl	glg	Galician locale	Galician
gu	guj	Gujarati locale (India)	Gujarati
he	heb	Hebrew locale	Hebrew
hi	hin	Hindi locale (India)	Hindi
hr	hrv	Croatian locale	Croatian
ht	hat	Haitian Creole locale	Haitian Creole
hu	hun	Hungarian locale	Hungarian
hy	arm	Armenian locale	Armenian
id	ind	Indonesian locale	Indonesian
is	isl	Icelandic locale	Icelandic
it	ita	Italian locale	Italian
ja	jpn	Japanese locale	Japanese
ja-Hira	jpn	Japanese (Hiragana) locale	Japanese (Hiragana)
ka	geo	Georgian locale	Georgian
kk	kaz	Kazakh locale	Kazakh
kn	kan	Kannada locale (India)	Kannada
ko	kor	Korean locale	Korean
lb	ltz	Luxembourgish locale	Luxembourgish
lt	lit	Lithuanian locale	Lithuanian
lv	lav	Latvian locale (Latvia)	Latvian
mk	mkd	Macedonian locale	Macedonian
mn	mon	Mongolian locale	Mongolian
ms	msa	Malay locale	Malay
mt	mlt	Maltese locale	Maltese
nb	nob	Norwegian Bokmål locale	Norwegian Bokmål
nl	nld	Dutch locale	Dutch
nl-BE	nld	Dutch locale	Dutch
nn	nno	Norwegian Nynorsk locale	Norwegian Nynorsk
pl	pol	Polish locale	Polish
pt	por	Portuguese locale	Portuguese
pt-BR	por	Portuguese locale (Brazil)	Portuguese
ro	ron	Romanian locale	Romanian
ru	rus	Russian locale	Russian
sk	slk	Slovak locale	Slovak
sl	slv	Slovenian locale	Slovenian
sq	sqi	Albanian locale	Shqip
sr	srp	Serbian cyrillic locale	Serbian
sr-Latn	srp	Serbian latin locale	Serbian
sv	swe	Swedish locale	Swedish
ta	tam	Tamil locale (India)	Tamil
te	tel	Telugu locale	Telugu
th	tha	Thai locale	Thai
tr	tur	Turkish locale	Turkish
ug	uig	Uighur locale	Uighur
uk	ukr	Ukrainian locale	Ukrainian
uz	uzb	Uzbek locale	Uzbek
vi	vie	Vietnamese locale (Vietnam)	Vietnamese
zh-CN	zho	Chinese Simplified locale	Chinese Simplified
zh-TW	zho	Chinese Traditional locale	Chinese Traditional

JSON

[
  {
    "code": "af",
    "iso_639_2": "afr",
    "summary": "Afrikaans locale",
    "language": "Afrikaans"
  },
  {
    "code": "ar-DZ",
    "iso_639_2": "ara",
    "summary": "Arabic locale (Algerian Arabic)",
    "language": "Algerian Arabic"
  },
  {
    "code": "ar-MA",
    "iso_639_2": "ara",
    "summary": "Arabic locale (Moroccan Arabic)",
    "language": "Moroccan Arabic"
  },
  {
    "code": "ar-SA",
    "iso_639_2": "ara",
    "summary": "Arabic locale (Sauid Arabic)",
    "language": "Arabic"
  },
  {
    "code": "ar-TN",
    "iso_639_2": "ara",
    "summary": "Arabic locale (Tunisian Arabic)",
    "language": "Arabic"
  },
  {
    "code": "az",
    "iso_639_2": "aze",
    "summary": "Azerbaijani locale",
    "language": "Azerbaijani"
  },
  {
    "code": "be",
    "iso_639_2": "bel",
    "summary": "Belarusian locale",
    "language": "Belarusian"
  },
  {
    "code": "bg",
    "iso_639_2": "bul",
    "summary": "Bulgarian locale",
    "language": "Bulgarian"
  },
  {
    "code": "bn",
    "iso_639_2": "ben",
    "summary": "Bengali locale",
    "language": "Bengali"
  },
  {
    "code": "bs",
    "iso_639_2": "bos",
    "summary": "Bosnian locale",
    "language": "Bosnian"
  },
  {
    "code": "ca",
    "iso_639_2": "cat",
    "summary": "Catalan locale",
    "language": "Catalan"
  },
  {
    "code": "cs",
    "iso_639_2": "ces",
    "summary": "Czech locale",
    "language": "Czech"
  },
  {
    "code": "cy",
    "iso_639_2": "cym",
    "summary": "Welsh locale",
    "language": "Welsh"
  },
  {
    "code": "da",
    "iso_639_2": "dan",
    "summary": "Danish locale",
    "language": "Danish"
  },
  {
    "code": "de",
    "iso_639_2": "deu",
    "summary": "German locale",
    "language": "German"
  },
  {
    "code": "de-AT",
    "iso_639_2": "deu",
    "summary": "German locale (Austria)",
    "language": "German"
  },
  {
    "code": "el",
    "iso_639_2": "ell",
    "summary": "Greek locale",
    "language": "Greek"
  },
  {
    "code": "en-AU",
    "iso_639_2": "eng",
    "summary": "English locale (Australia)",
    "language": "English"
  },
  {
    "code": "en-CA",
    "iso_639_2": "eng",
    "summary": "English locale (Canada)",
    "language": "English"
  },
  {
    "code": "en-GB",
    "iso_639_2": "eng",
    "summary": "English locale (United Kingdom)",
    "language": "English"
  },
  {
    "code": "en-IN",
    "iso_639_2": "eng",
    "summary": "English locale (India)",
    "language": "English"
  },
  {
    "code": "en-NZ",
    "iso_639_2": "eng",
    "summary": "English locale (New Zealand)",
    "language": "English"
  },
  {
    "code": "en-US",
    "iso_639_2": "eng",
    "summary": "English locale (United States)",
    "language": "English"
  },
  {
    "code": "en-ZA",
    "iso_639_2": "eng",
    "summary": "English locale (South Africa)",
    "language": "English"
  },
  {
    "code": "eo",
    "iso_639_2": "epo",
    "summary": "Esperanto locale",
    "language": "Esperanto"
  },
  {
    "code": "es",
    "iso_639_2": "spa",
    "summary": "Spanish locale",
    "language": "Spanish"
  },
  {
    "code": "et",
    "iso_639_2": "est",
    "summary": "Estonian locale",
    "language": "Estonian"
  },
  {
    "code": "eu",
    "iso_639_2": "eus",
    "summary": "Basque locale",
    "language": "Basque"
  },
  {
    "code": "fa-IR",
    "iso_639_2": "ira",
    "summary": "Persian/Farsi locale (Iran)",
    "language": "Persian"
  },
  {
    "code": "fi",
    "iso_639_2": "fin",
    "summary": "Finnish locale",
    "language": "Finnish"
  },
  {
    "code": "fr",
    "iso_639_2": "fra",
    "summary": "French locale",
    "language": "French"
  },
  {
    "code": "fr-CA",
    "iso_639_2": "fra",
    "summary": "French locale (Canada)",
    "language": "French"
  },
  {
    "code": "fr-CH",
    "iso_639_2": "fra",
    "summary": "French locale",
    "language": "French"
  },
  {
    "code": "gd",
    "iso_639_2": "gla",
    "summary": "Scottish Gaelic",
    "language": "Scottish Gaelic"
  },
  {
    "code": "gl",
    "iso_639_2": "glg",
    "summary": "Galician locale",
    "language": "Galician"
  },
  {
    "code": "gu",
    "iso_639_2": "guj",
    "summary": "Gujarati locale (India)",
    "language": "Gujarati"
  },
  {
    "code": "he",
    "iso_639_2": "heb",
    "summary": "Hebrew locale",
    "language": "Hebrew"
  },
  {
    "code": "hi",
    "iso_639_2": "hin",
    "summary": "Hindi locale (India)",
    "language": "Hindi"
  },
  {
    "code": "hr",
    "iso_639_2": "hrv",
    "summary": "Croatian locale",
    "language": "Croatian"
  },
  {
    "code": "ht",
    "iso_639_2": "hat",
    "summary": "Haitian Creole locale",
    "language": "Haitian Creole"
  },
  {
    "code": "hu",
    "iso_639_2": "hun",
    "summary": "Hungarian locale",
    "language": "Hungarian"
  },
  {
    "code": "hy",
    "iso_639_2": "arm",
    "summary": "Armenian locale",
    "language": "Armenian"
  },
  {
    "code": "id",
    "iso_639_2": "ind",
    "summary": "Indonesian locale",
    "language": "Indonesian"
  },
  {
    "code": "is",
    "iso_639_2": "isl",
    "summary": "Icelandic locale",
    "language": "Icelandic"
  },
  {
    "code": "it",
    "iso_639_2": "ita",
    "summary": "Italian locale",
    "language": "Italian"
  },
  {
    "code": "ja",
    "iso_639_2": "jpn",
    "summary": "Japanese locale",
    "language": "Japanese"
  },
  {
    "code": "ja-Hira",
    "iso_639_2": "jpn",
    "summary": "Japanese (Hiragana) locale",
    "language": "Japanese (Hiragana)"
  },
  {
    "code": "ka",
    "iso_639_2": "geo",
    "summary": "Georgian locale",
    "language": "Georgian"
  },
  {
    "code": "kk",
    "iso_639_2": "kaz",
    "summary": "Kazakh locale",
    "language": "Kazakh"
  },
  {
    "code": "kn",
    "iso_639_2": "kan",
    "summary": "Kannada locale (India)",
    "language": "Kannada"
  },
  {
    "code": "ko",
    "iso_639_2": "kor",
    "summary": "Korean locale",
    "language": "Korean"
  },
  {
    "code": "lb",
    "iso_639_2": "ltz",
    "summary": "Luxembourgish locale",
    "language": "Luxembourgish"
  },
  {
    "code": "lt",
    "iso_639_2": "lit",
    "summary": "Lithuanian locale",
    "language": "Lithuanian"
  },
  {
    "code": "lv",
    "iso_639_2": "lav",
    "summary": "Latvian locale (Latvia)",
    "language": "Latvian"
  },
  {
    "code": "mk",
    "iso_639_2": "mkd",
    "summary": "Macedonian locale",
    "language": "Macedonian"
  },
  {
    "code": "mn",
    "iso_639_2": "mon",
    "summary": "Mongolian locale",
    "language": "Mongolian"
  },
  {
    "code": "ms",
    "iso_639_2": "msa",
    "summary": "Malay locale",
    "language": "Malay"
  },
  {
    "code": "mt",
    "iso_639_2": "mlt",
    "summary": "Maltese locale",
    "language": "Maltese"
  },
  {
    "code": "nb",
    "iso_639_2": "nob",
    "summary": "Norwegian Bokmål locale",
    "language": "Norwegian Bokmål"
  },
  {
    "code": "nl",
    "iso_639_2": "nld",
    "summary": "Dutch locale",
    "language": "Dutch"
  },
  {
    "code": "nl-BE",
    "iso_639_2": "nld",
    "summary": "Dutch locale",
    "language": "Dutch"
  },
  {
    "code": "nn",
    "iso_639_2": "nno",
    "summary": "Norwegian Nynorsk locale",
    "language": "Norwegian Nynorsk"
  },
  {
    "code": "pl",
    "iso_639_2": "pol",
    "summary": "Polish locale",
    "language": "Polish"
  },
  {
    "code": "pt",
    "iso_639_2": "por",
    "summary": "Portuguese locale",
    "language": "Portuguese"
  },
  {
    "code": "pt-BR",
    "iso_639_2": "por",
    "summary": "Portuguese locale (Brazil)",
    "language": "Portuguese"
  },
  {
    "code": "ro",
    "iso_639_2": "ron",
    "summary": "Romanian locale",
    "language": "Romanian"
  },
  {
    "code": "ru",
    "iso_639_2": "rus",
    "summary": "Russian locale",
    "language": "Russian"
  },
  {
    "code": "sk",
    "iso_639_2": "slk",
    "summary": "Slovak locale",
    "language": "Slovak"
  },
  {
    "code": "sl",
    "iso_639_2": "slv",
    "summary": "Slovenian locale",
    "language": "Slovenian"
  },
  {
    "code": "sq",
    "iso_639_2": "sqi",
    "summary": "Albanian locale",
    "language": "Shqip"
  },
  {
    "code": "sr",
    "iso_639_2": "srp",
    "summary": "Serbian cyrillic locale",
    "language": "Serbian"
  },
  {
    "code": "sr-Latn",
    "iso_639_2": "srp",
    "summary": "Serbian latin locale",
    "language": "Serbian"
  },
  {
    "code": "sv",
    "iso_639_2": "swe",
    "summary": "Swedish locale",
    "language": "Swedish"
  },
  {
    "code": "ta",
    "iso_639_2": "tam",
    "summary": "Tamil locale (India)",
    "language": "Tamil"
  },
  {
    "code": "te",
    "iso_639_2": "tel",
    "summary": "Telugu locale",
    "language": "Telugu"
  },
  {
    "code": "th",
    "iso_639_2": "tha",
    "summary": "Thai locale",
    "language": "Thai"
  },
  {
    "code": "tr",
    "iso_639_2": "tur",
    "summary": "Turkish locale",
    "language": "Turkish"
  },
  {
    "code": "ug",
    "iso_639_2": "uig",
    "summary": "Uighur locale",
    "language": "Uighur"
  },
  {
    "code": "uk",
    "iso_639_2": "ukr",
    "summary": "Ukrainian locale",
    "language": "Ukrainian"
  },
  {
    "code": "uz",
    "iso_639_2": "uzb",
    "summary": "Uzbek locale",
    "language": "Uzbek"
  },
  {
    "code": "vi",
    "iso_639_2": "vie",
    "summary": "Vietnamese locale (Vietnam)",
    "language": "Vietnamese"
  },
  {
    "code": "zh-CN",
    "iso_639_2": "zho",
    "summary": "Chinese Simplified locale",
    "language": "Chinese Simplified"
  },
  {
    "code": "zh-TW",
    "iso_639_2": "zho",
    "summary": "Chinese Traditional locale",
    "language": "Chinese Traditional"
  }
]

[bartduisters]

Dutch (Belgium) is what it should refer to in my opinion. Flemish (not Fleming) is not a language nor a dialect.

[fturmel]

Thank you, I will fix it in the PR below. Any thoughts on CLDR listing nl_BE as Flemish in the English column?

https://unicode-org.github.io/cldr-staging/charts/40/summary/nl.html

[bartduisters]

Yes, my thoughts are that CLDR has it wrong as well.

I've put a comment on the commit that introduced the change: 20963fe

[fturmel]

For anyone interested in this topic, keep track of PR #2838. If merged, it will dynamically generate a page in the documentation that lists all available locales for each release.

[tan75]

Hi all,

brilliant idea!
We will discuss it this coming week in our release meeting.

[mamiabudat]

I went to the repo, and found the folders named according to the languages supported. Documentation could be better
https://github.com/date-fns/date-fns/tree/main/src/locale