What are language codes in Chrome's implementation of the HTML5 speech recognition API?

Question

Chrome implemented the HTML5 speech recognition API. Many languages are supported. I wanna know which languages are supported and each language\'s corresponding code which is us

Answer 1

I know this is an old post, but since this information is annoyingly hard to find I thought I'd post a list for anyone who might be looking. Please leave a note if you find any errors or omissions.

{
  "Afrikaans": [
    ["South Africa", "af-ZA"]
  ],
  "Arabic" : [
    ["Algeria","ar-DZ"],
    ["Bahrain","ar-BH"],
    ["Egypt","ar-EG"],
    ["Israel","ar-IL"],
    ["Iraq","ar-IQ"],
    ["Jordan","ar-JO"],
    ["Kuwait","ar-KW"],
    ["Lebanon","ar-LB"],
    ["Morocco","ar-MA"],
    ["Oman","ar-OM"],
    ["Palestinian Territory","ar-PS"],
    ["Qatar","ar-QA"],
    ["Saudi Arabia","ar-SA"],
    ["Tunisia","ar-TN"],
    ["UAE","ar-AE"]
  ],
  "Basque": [
    ["Spain", "eu-ES"]
  ],
  "Bulgarian": [
    ["Bulgaria", "bg-BG"]
  ],
  "Catalan": [
    ["Spain", "ca-ES"]
  ],
  "Chinese Mandarin": [
    ["China (Simp.)", "cmn-Hans-CN"],
    ["Hong Kong SAR (Trad.)", "cmn-Hans-HK"],
    ["Taiwan (Trad.)", "cmn-Hant-TW"]
  ],
  "Chinese Cantonese": [
    ["Hong Kong", "yue-Hant-HK"]
  ],
  "Croatian": [
    ["Croatia", "hr_HR"]
  ],
  "Czech": [
    ["Czech Republic", "cs-CZ"]
  ],
  "Danish": [
    ["Denmark", "da-DK"]
  ],
  "English": [
    ["Australia", "en-AU"],
    ["Canada", "en-CA"],
    ["India", "en-IN"],
    ["Ireland", "en-IE"],
    ["New Zealand", "en-NZ"],
    ["Philippines", "en-PH"],
    ["South Africa", "en-ZA"],
    ["United Kingdom", "en-GB"],
    ["United States", "en-US"]
  ],
  "Farsi": [
    ["Iran", "fa-IR"]
  ],
  "French": [
    ["France", "fr-FR"]
  ],
  "Filipino": [
    ["Philippines", "fil-PH"]
  ],
  "Galician": [
    ["Spain", "gl-ES"]
  ],
  "German": [
    ["Germany", "de-DE"]
  ],
  "Greek": [
    ["Greece", "el-GR"]
  ],
  "Finnish": [
    ["Finland", "fi-FI"]
  ],
  "Hebrew" :[
    ["Israel", "he-IL"]
  ],
  "Hindi": [
    ["India", "hi-IN"]
  ],
  "Hungarian": [
    ["Hungary", "hu-HU"]
  ],
  "Indonesian": [
    ["Indonesia", "id-ID"]
  ],
  "Icelandic": [
    ["Iceland", "is-IS"]
  ],
  "Italian": [
    ["Italy", "it-IT"],
    ["Switzerland", "it-CH"]
  ],
  "Japanese": [
    ["Japan", "ja-JP"]
  ],
  "Korean": [
    ["Korea", "ko-KR"]
  ],
  "Lithuanian": [
    ["Lithuania", "lt-LT"]
  ],
  "Malaysian": [
    ["Malaysia", "ms-MY"]
  ],
  "Dutch": [
    ["Netherlands", "nl-NL"]
  ],
  "Norwegian": [
    ["Norway", "nb-NO"]
  ],
  "Polish": [
    ["Poland", "pl-PL"]
  ],
  "Portuguese": [
    ["Brazil", "pt-BR"],
    ["Portugal", "pt-PT"]
  ],
  "Romanian": [
    ["Romania", "ro-RO"]
  ],
  "Russian": [
    ["Russia", "ru-RU"]
  ],
  "Serbian": [
    ["Serbia", "sr-RS"]
  ],
  "Slovak": [
    ["Slovakia", "sk-SK"]
  ],
  "Slovenian": [
    ["Slovenia", "sl-SI"]
  ],
  "Spanish": [
    ["Argentina", "es-AR"],
    ["Bolivia", "es-BO"],
    ["Chile", "es-CL"],
    ["Colombia", "es-CO"],
    ["Costa Rica", "es-CR"],
    ["Dominican Republic", "es-DO"],
    ["Ecuador", "es-EC"],
    ["El Salvador", "es-SV"],
    ["Guatemala", "es-GT"],
    ["Honduras", "es-HN"],
    ["México", "es-MX"],
    ["Nicaragua", "es-NI"],
    ["Panamá", "es-PA"],
    ["Paraguay", "es-PY"],
    ["Perú", "es-PE"],
    ["Puerto Rico", "es-PR"],
    ["Spain", "es-ES"],
    ["Uruguay", "es-UY"],
    ["United States", "es-US"],
    ["Venezuela", "es-VE"]
  ],
  "Swedish": [
    ["Sweden", "sv-SE"]
  ],
  "Thai": [
    ["Thailand", "th-TH"]
  ],
  "Turkish": [
    ["Turkey", "tr-TR"]
  ],
  "Ukrainian": [
    ["Ukraine", "uk-UA"]
  ],
  "Vietnamese": [
    ["Viet Nam", "vi-VN"]
  ],
  "Zulu": [
    ["South Africa", "zu-ZA"]
  ]
}

Edit: I also found this list, which is probably more current: https://cloud.google.com/speech-to-text/docs/languages