Language Support
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The Cloud Natural Language API supports a variety of languages.
These languages are specified within a request using the optional language
parameter. Language code parameters conform to
ISO-639-1 or
BCP-47 identifiers.
If you do not specify a language parameter, then the language for
the request is auto-detected by the Natural Language API.
The list of supported languages differs depending on the feature.
Content classification
| Language |
ISO-639-1 Code |
| Chinese (Simplified) |
zh |
| Chinese (Traditional) |
zh-Hant |
| Dutch |
nl |
| English |
en |
| French |
fr |
| German |
de |
| Italian |
it |
| Japanese |
ja |
| Korean |
ko |
| Portuguese (Brazilian & Continental) |
pt |
| Russian |
ru |
| Spanish |
es |
| Language |
ISO-639-1 Code |
| English |
en |
Syntactic analysis
| Language |
ISO-639-1 Code |
| Chinese (Simplified) |
zh |
| Chinese (Traditional) |
zh-Hant |
| English |
en |
| French |
fr |
| German |
de |
| Italian |
it |
| Japanese |
ja |
| Korean |
ko |
| Portuguese (Brazilian & Continental) |
pt |
| Russian |
ru |
| Spanish |
es |
Entity analysis
| Language |
ISO-639-1 Code |
| Chinese (Simplified) |
zh |
| Chinese (Traditional) |
zh-Hant |
| English |
en |
| French |
fr |
| German |
de |
| Italian |
it |
| Japanese |
ja |
| Korean |
ko |
| Portuguese (Brazilian & Continental) |
pt |
| Russian |
ru |
| Spanish |
es |
Sentiment analysis
| Language |
ISO-639-1 Code |
| Arabic |
ar |
| Chinese (Simplified) |
zh |
| Chinese (Traditional) |
zh-Hant |
| Dutch |
nl |
| English |
en |
| French |
fr |
| German |
de |
| Indonesian |
id |
| Italian |
it |
| Japanese |
ja |
| Korean |
ko |
| Portuguese (Brazilian & Continental) |
pt |
| Spanish |
es |
| Thai |
th |
| Turkish |
tr |
| Vietnamese |
vi |
Entity sentiment analysis
| Language |
ISO-639-1 Code |
| English |
en |
| Japanese |
ja |
| Spanish |
es |
Text moderation
| Language |
ISO-639-1 Code |
| Arabic |
*ar |
| Chinese (Simplified) |
zh |
| Dutch |
*nl |
| English |
en |
| French |
fr |
| German |
de |
| Hindi |
*hi |
| Indonesian |
*id |
| Italian |
it |
| Japanese |
ja |
| Korean |
ko |
| Portuguese (Brazilian & Continental) |
pt |
| Russian |
*ru |
| Spanish |
es |
*language support is limited based on the type of text (eg. webpage, chat message, etc) for some attributes. In any case, we recommend thorough evaluation for your use case.
Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2026-07-29 UTC.
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