Go to

ISO language codes

SurveyLab allows to set language for each respondent in the Contacts. Languages are defined with two-letter ISO 639-1 code (e.g. en, pl, cz, ar). This feature allows you to send a survey in a defined language.

ISO codes for supported languages

Language ISO code
Polish pl
English en
Czech cz
Arabic ar
French fr
Hindi hi
Russian ru
Swedish sv
Chinese zh
Danish da
German de
Italian it
Hungarian hu
Slovak sk
Slovenian sl
Afrikaans af
Albanian sq
Bengali bn
Belarusian be
Bulgarian bg
Catalan ca
Chinese zh
Danish da
Estonian et
Persian fa
Finish fi
Greek  el
Georgian ka
Hebrew he
Spanish es
Dutch nl
Japanese ja
Korean ko
Lithuanian lt
Latvian lv
Norwegian no
Portuguese pt
Romanian ro
Russian ru
Serbian sr
Thai th
Turkish tr
Ukrainian uk
Vietnamese vi
Urdu ur
Tagalog tl
Mongolian mn
Pashto ps
Uzbek uz
Khmer km
Tamil ta
Singhala si
Croatian hr
Indonesian id
Zulu zu
Kazakh kk
Spanish Mexican es-mx
Chinese Traditional zh-cht
English US en-us
English UK en-uk

Check the full list of codes at https://www.loc.gov/standards/iso639-2/php/code_list.php