You may try to evaluate spell & grammar checking functionality for a chosen language on the supported languages demo page. Here is a list of all available and supported languages with their short codes starting the version 5.17.0 (December 27, 2021). Enabled* (v5.17.0-v5.29.0) Updated language code from sl_SL to sl_SI. UPDATED | v5.27.0Language Spelling Grammar Medical Legal Country Short code Localization Number of words Comments Auto Detect auto - - Auto detect defines a language and sets a correct language for further check. Yes AI-based English + + en_AI - - The beta version; general English. Yes AI-based German + + de_AI - - The beta version AI-based Spanish + + es_AI - - The beta version Afrikaans + South Africa af_ZA Albanian + Albania sq_AL American English + + United States en_US en-us 142,375 Yes Amharic + Ethiopia am_ET Arabic + + ar_SA NEW | 5.5.9 Yes Argentinian Spanish + + + Argentina es_AR Australian English + + + + Australia en_AU Yes Austrian German + + Austria de_AT Bengali + India bn_IN Brazilian Portuguese + + Brazil pt_BR pt-br 10,394,016 Yes British English + + + + The United Kingdom en_GB en-gb 145,296 Yes Bulgarian + Bulgaria bg_BG Canadian English + + + + Canada en_CA en-ca 121,966 Yes Canadian French + + + Canada fr_CA fr-ca 136,870 Catalan + + Spain ca_ES Chilean Spanish + + + Chile es_CL Colombian Spanish + + + Columbia es_CO Costa Rican Spanish + + + Costa Rica es_CR Croatian + Croatia hr_HR Czech + Czech Republic cs_CZ Danish + + Denmark da_DK da 311,122 Yes Dominican Spanish + + + Dominican Republic es_DO Dutch + + The Netherlands nl_NL nl 425,411 Yes Estonian + Estonia et_EE Euskara or Basque + Spain eu_ES Finnish + Finland fi_FI fi 251,467 Yes French + + + France fr_FR fr 423,869 Yes Galician + + Spain gl_ES German + + Germany de_DE de 2,301,750 Yes Greek + + Greece, Cyprus el_GR el 575,120 Yes Hebrew + Israel he_HE Yes Hindi + India hi_IN Hungarian + Hungary hu_HU Icelandic + Iceland is_IS Indonesian + Indonesia id_ID Yes Irish + + Ireland ga_IE Italian + + Italy it_IT it 2,904,302 Yes Japanese + Japan ja_JP NEW | 5.5.6 Kenya Swahili + Kenya sw_KE Korean + South Korea ko_KR Latvian + Latvia lv_LV Lingala + Dem. Rep. of Congo ln_CD Lithuanian + Lithuania lt_LT Luxembourgish + Luxembourg lb_LU Malay + Malaysia ms_MY Malayalam + India ml_IN Maori + New Zealand mi_NZ Mexican Spanish + + + Mexico es_MX Yes Mongolian + Mongolia mn_MN New Zealand English + + + + New Zealand en_NZ Northern Sotho + South Africa ns_ZA Norwegian Bokmal + Norway nb_NO nb 888,428 Norwegian Nynorsk + Norway nn_NO Yes Peruvian Spanish + + + Peru es_PE Polish + + Poland pl_PL Yes Portuguese + + Portugal pt_PT pt 993,633 Yes Puerto Rican Spanish + + + Puerto Rico es_PR Romanian + + Romania ro_RO Russian + + Russia ru_RU, ry_RU Yes Scottish + Gaelic Scotland gd_GB Simplified Chinese + Mainland China, Singapore zh_CN Slovak + + Slovakia sk_SK Slovenian + + Slovenia sl_SI South African English + + + + South Africa en_ZA Southern Ndebele + South Africa nr_ZA Southern Sotho + South Africa st_ZA Spanish + + + Spain es_ES es 3,207,402 Yes Swedish + + Sweden, Finland sv_SE sv 861,730 Yes Swiss German + + Switzerland de_CH Yes Tagalog + + Philippines tl_PH Telugu + India te_IN Tok Pisin + Papua New Guinea tpi_PG Turkish + Turkey tr_TR Yes Ukrainian + + Ukraine uk_UA uk 2,597,806 Yes Urdu + Pakistan ur_PK Uruguayan Spanish + + + Uruguay es_UY Valencian + Spain cat_ES Venezuelan Spanish + + + Venezuela es_VE Vietnamese + Vietnam vi_VN Welsh + Wales cy_GB Xhosa + South Africa xh_ZA Zulu + South Africa zu_ZA