Languages supported

If trying to convert between variants of the same language (e.g. EN-US to EN-GB), please refer to this guide.

Translation source languages

ACE - Acehnese*
AF - Afrikaans*
AN - Aragonese*
AR - Arabic
AS - Assamese*
AY - Aymara*
AZ - Azerbaijani*
BA - Bashkir*
BE - Belarusian*
BG - Bulgarian
BHO - Bhojpuri*
BN - Bengali*
BR - Breton*
BS - Bosnian*
CA - Catalan*
CEB - Cebuano*
CKB - Kurdish (Sorani)*
CS - Czech
CY - Welsh*
DA - Danish
DE - German
EL - Greek
EN - English (all English variants)
EO - Esperanto*
ES - Spanish (all Spanish variants)
ET - Estonian
EU - Basque*
FA - Persian*
FI - Finnish
FR - French
GA - Irish*
GL - Galician*
GN - Guarani*
GOM - Konkani*
GU - Gujarati*
HA - Hausa*
HE - Hebrew
HI - Hindi*
HR - Croatian*
HT - Haitian Creole*
HU - Hungarian
HY - Armenian*
ID - Indonesian
IG - Igbo*
IS - Icelandic*
IT - Italian
JA - Japanese
JV - Javanese*
KA - Georgian*
KK - Kazakh*
KMR - Kurdish (Kurmanji)*
KO - Korean
KY - Kyrgyz*
LA - Latin*
LB - Luxembourgish*
LMO - Lombard*
LN - Lingala*
LT - Lithuanian
LV - Latvian
MAI - Maithili*
MG - Malagasy*
MI - Maori*
MK - Macedonian*
ML - Malayalam*
MN - Mongolian*
MR - Marathi*
MS - Malay*
MT - Maltese*
MY - Burmese*
NB - Norwegian Bokmål
NE - Nepali*
NL - Dutch
OC - Occitan*
OM - Oromo*
PA - Punjabi*
PAG - Pangasinan*
PAM - Kapampangan*
PL - Polish
PRS - Dari*
PS - Pashto*
PT - Portuguese (all Portuguese variants)
QU - Quechua*
RO - Romanian
RU - Russian
SA - Sanskrit*
SCN - Sicilian*
SK - Slovak
SL - Slovenian
SQ - Albanian*
SR - Serbian*
ST - Sesotho*
SU - Sundanese*
SV - Swedish
SW - Swahili*
TA - Tamil*
TE - Telugu*
TG - Tajik*
TH - Thai
TK - Turkmen*
TL - Tagalog*
TN - Tswana*
TR - Turkish
TS - Tsonga*
TT - Tatar*
UK - Ukrainian
UR - Urdu*
UZ - Uzbek*
VI - Vietnamese
WO - Wolof*
XH - Xhosa*
YI - Yiddish*
YUE - Cantonese*
ZH - Chinese (all Chinese variants)
ZU - Zulu*

* These languages only work with the quality_optimized model or when no model is specified. They are not compatible with requests that specify the latency_optimized model. These languages do not support glossaries or formality.

Translation target languages

ACE - Acehnese*
AF - Afrikaans*
AN - Aragonese*
AR - Arabic
AS - Assamese*
AY - Aymara*
AZ - Azerbaijani*
BA - Bashkir*
BE - Belarusian*
BG - Bulgarian
BHO - Bhojpuri*
BN - Bengali*
BR - Breton*
BS - Bosnian*
CA - Catalan*
CEB - Cebuano*
CKB - Kurdish (Sorani)*
CS - Czech
CY - Welsh*
DA - Danish
DE - German
EL - Greek
EN - English (unspecified variant for backward compatibility; we recommend usingEN-GB or EN-US instead)
EN-GB - English (British)
EN-US - English (American)
EO - Esperanto*
ES - Spanish
ES-419 - Spanish (Latin American)
ET - Estonian
EU - Basque*
FA - Persian*
FI - Finnish
FR - French
GA - Irish*
GL - Galician*
GN - Guarani*
GOM - Konkani*
GU - Gujarati*
HA - Hausa*
HE - Hebrew
HI - Hindi*
HR - Croatian*
HT - Haitian Creole*
HU - Hungarian
HY - Armenian*
ID - Indonesian
IG - Igbo*
IS - Icelandic*
IT - Italian
JA - Japanese
JV - Javanese*
KA - Georgian*
KK - Kazakh*
KMR - Kurdish (Kurmanji)*
KO - Korean
KY - Kyrgyz*
LA - Latin*
LB - Luxembourgish*
LMO - Lombard*
LN - Lingala*
LT - Lithuanian
LV - Latvian
MAI - Maithili*
MG - Malagasy*
MI - Maori*
MK - Macedonian*
ML - Malayalam*
MN - Mongolian*
MR - Marathi*
MS - Malay*
MT - Maltese*
MY - Burmese*
NB - Norwegian Bokmål
NE - Nepali*
NL - Dutch
OC - Occitan*
OM - Oromo*
PA - Punjabi*
PAG - Pangasinan*
PAM - Kapampangan*
PL - Polish
PRS - Dari*
PS - Pashto*
PT - Portuguese (unspecified variant for backward compatibility; we recommend using PT-BR or PT-PT instead)
PT-BR - Portuguese (Brazilian)
PT-PT - Portuguese (all Portuguese variants excluding Brazilian Portuguese)
QU - Quechua*
RO - Romanian
RU - Russian
SA - Sanskrit*
SCN - Sicilian*
SK - Slovak
SL - Slovenian
SQ - Albanian*
SR - Serbian*
ST - Sesotho*
SU - Sundanese*
SV - Swedish
SW - Swahili*
TA - Tamil*
TE - Telugu*
TG - Tajik*
TH - Thai
TK - Turkmen*
TL - Tagalog*
TN - Tswana*
TR - Turkish
TS - Tsonga*
TT - Tatar*
UK - Ukrainian
UR - Urdu*
UZ - Uzbek*
VI - Vietnamese
WO - Wolof*
XH - Xhosa*
YI - Yiddish*
YUE - Cantonese*
ZH - Chinese (unspecified variant for backward compatibility; we recommend using ZH-HANS or ZH-HANT instead)
ZH-HANS - Chinese (simplified)
ZH-HANT - Chinese (traditional)
ZU - Zulu*

Glossary languages

The following can be either source or target languages in a glossary.

AR - Arabic
BG - Bulgarian
CS - Czech
DA - Danish
DE - German
EL - Greek
EN - English
ES - Spanish
ET - Estonian
FI - Finnish
FR - French
HE - Hebrew
HU - Hungarian
ID - Indonesian
IT - Italian
JA - Japanese
KO - Korean
LT - Lithuanian
LV - Latvian
NB - Norwegian Bokmål
NL - Dutch
PL - Polish
PT - Portuguese
RO - Romanian
RU - Russian
SK - Slovak
SL - Slovenian
SV - Swedish
TH - Thai
TR - Turkish
UK - Ukrainian
VI - Vietnamese
ZH - Chinese

Text improvement languages (DeepL API for Write)

As of April 2025, supported languages for text improvement (DeepL API for Write) have not yet been added to the /languages endpoint; we’ll be extending the /languages endpoint in the near future to include this information.

DE (German)
EN-GB (British English)
EN-US (American English)
ES (Spanish)
FR (French)
IT (Italian)
PT-BR (Brazilian Portuguese)
PT-PT (Portuguese)

For the /write/rephase endpoint, writing_style and tone currently work in DE, EN-GB, and EN-US.

Getting Started

Learning & How Tos

Best Practices

XML and HTML handling

Resources

Translation source languages

Translation target languages

Glossary languages

Text improvement languages (DeepL API for Write)

Getting Started

Learning & How Tos

Best Practices

XML and HTML handling

Resources

​Translation source languages

​Translation target languages

​Glossary languages

​Text improvement languages (DeepL API for Write)

Translation source languages

Translation target languages

Glossary languages

Text improvement languages (DeepL API for Write)