The DeepL API supports the following languages. We will update this list as we introduce new languages.
Please note that Hebrew, Thai and Vietnamese have not been added to the /languages
endpoint as they are only available in the Pro v2 API using next-gen models. When these languages are available for all accounts and models they will be added to the /languages
endpoint and this note will be removed.
AR
- ArabicBG
- BulgarianCS
- CzechDA
- DanishDE
- GermanEL
- GreekEN
- English (all English variants)ES
- SpanishET
- EstonianFI
- FinnishFR
- FrenchHE
- Hebrew (Pro v2 API, next-gen models only)HU
- HungarianID
- IndonesianIT
- ItalianJA
- JapaneseKO
- KoreanLT
- LithuanianLV
- LatvianNB
- Norwegian BokmålNL
- DutchPL
- PolishPT
- Portuguese (all Portuguese variants)RO
- RomanianRU
- RussianSK
- SlovakSL
- SlovenianSV
- SwedishTH
- Thai (Pro v2 API, text translation via next-gen models only)TR
- TurkishUK
- UkrainianVI
- Vietnamese (Pro v2 API, next-gen models only)ZH
- Chinese (all Chinese variants)AR
- ArabicBG
- BulgarianCS
- CzechDA
- DanishDE
- GermanEL
- GreekEN
- English (unspecified variant for backward compatibility; please select EN-GB
or EN-US
instead)EN-GB
- English (British)EN-US
- English (American)ES
- SpanishET
- EstonianFI
- FinnishFR
- FrenchHE
- Hebrew (Pro v2 API, next-gen models only)HU
- HungarianID
- IndonesianIT
- ItalianJA
- JapaneseKO
- KoreanLT
- LithuanianLV
- LatvianNB
- Norwegian BokmålNL
- DutchPL
- PolishPT
- Portuguese (unspecified variant for backward compatibility; please select PT-BR
or PT-PT
instead)PT-BR
- Portuguese (Brazilian)PT-PT
- Portuguese (all Portuguese variants excluding Brazilian Portuguese)RO
- RomanianRU
- RussianSK
- SlovakSL
- SlovenianSV
- SwedishTH
- Thai (Pro v2 API, text translation via next-gen models only)TR
- TurkishUK
- UkrainianVI
- Vietnamese (Pro v2 API, next-gen models only)ZH
- Chinese (unspecified variant for backward compatibility; please select ZH-HANS
or ZH-HANT
instead)ZH-HANS
- Chinese (simplified)ZH-HANT
- Chinese (traditional)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
endpoint, writing_style
and tone
currently work in DE
, EN-GB
, and EN-US
.
The DeepL API supports the following languages. We will update this list as we introduce new languages.
Please note that Hebrew, Thai and Vietnamese have not been added to the /languages
endpoint as they are only available in the Pro v2 API using next-gen models. When these languages are available for all accounts and models they will be added to the /languages
endpoint and this note will be removed.
AR
- ArabicBG
- BulgarianCS
- CzechDA
- DanishDE
- GermanEL
- GreekEN
- English (all English variants)ES
- SpanishET
- EstonianFI
- FinnishFR
- FrenchHE
- Hebrew (Pro v2 API, next-gen models only)HU
- HungarianID
- IndonesianIT
- ItalianJA
- JapaneseKO
- KoreanLT
- LithuanianLV
- LatvianNB
- Norwegian BokmålNL
- DutchPL
- PolishPT
- Portuguese (all Portuguese variants)RO
- RomanianRU
- RussianSK
- SlovakSL
- SlovenianSV
- SwedishTH
- Thai (Pro v2 API, text translation via next-gen models only)TR
- TurkishUK
- UkrainianVI
- Vietnamese (Pro v2 API, next-gen models only)ZH
- Chinese (all Chinese variants)AR
- ArabicBG
- BulgarianCS
- CzechDA
- DanishDE
- GermanEL
- GreekEN
- English (unspecified variant for backward compatibility; please select EN-GB
or EN-US
instead)EN-GB
- English (British)EN-US
- English (American)ES
- SpanishET
- EstonianFI
- FinnishFR
- FrenchHE
- Hebrew (Pro v2 API, next-gen models only)HU
- HungarianID
- IndonesianIT
- ItalianJA
- JapaneseKO
- KoreanLT
- LithuanianLV
- LatvianNB
- Norwegian BokmålNL
- DutchPL
- PolishPT
- Portuguese (unspecified variant for backward compatibility; please select PT-BR
or PT-PT
instead)PT-BR
- Portuguese (Brazilian)PT-PT
- Portuguese (all Portuguese variants excluding Brazilian Portuguese)RO
- RomanianRU
- RussianSK
- SlovakSL
- SlovenianSV
- SwedishTH
- Thai (Pro v2 API, text translation via next-gen models only)TR
- TurkishUK
- UkrainianVI
- Vietnamese (Pro v2 API, next-gen models only)ZH
- Chinese (unspecified variant for backward compatibility; please select ZH-HANS
or ZH-HANT
instead)ZH-HANS
- Chinese (simplified)ZH-HANT
- Chinese (traditional)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
endpoint, writing_style
and tone
currently work in DE
, EN-GB
, and EN-US
.