The DeepL API supports the following languages. We will update this list as we introduce new languages.
Please note that Hebrew, Latin American Spanish, 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
- Spanish (all Spanish variants)ET
- EstonianFI
- FinnishFR
- FrenchHE
- Hebrew (text translation via 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 (text translation via next-gen models only)TR
- TurkishUK
- UkrainianVI
- Vietnamese (text translation via 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
- SpanishES-419
- Spanish (Latin American)ET
- EstonianFI
- FinnishFR
- FrenchHE
- Hebrew (text translation via 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 (text translation via next-gen models only)TR
- TurkishUK
- UkrainianVI
- Vietnamese (text translation via 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
.