Language Detection API


Language Detection API



With the Language Detection API, you can automatically detect the language a particular text message is written in, regardless of the message length or its source. Tweets, web-page extracts, or any other plain text are all supported. This API distinguishes 27 languages in real-time with a 99,98% accuracy.

For more details, please consult this API's documentation.


Supported Languages

We are continually improving the range of available languages for this API. Currently, Language Detection API supports the following 27 languages:

  1. Arabic (عربي)
  2. Bulgarian (Български)
  3. Czech (Čeština)
  4. Danish (Dansk)
  5. Dutch (Nederlands)
  6. German (Deutsch)
  7. Greek (ελληνικά)
  8. English
  9. Estonian (Eesti)
  10. Finish (Suomi)
  11. French (Français)
  12. Hungarian (Magyar)
  13. Indonesian (Bahasa Indonesia)
  14. Italian (Italiano)
  15. Latvian (Latviešu)
  16. Lithuanian (Lietuvių)
  17. Phillipino (Tagalog)
  18. Polish (Polski)
  19. Portugese (Português)
  20. Romanian (Română)
  21. Russian (Русский)
  22. Serbian (Српски/Srpski)
  23. Slovakian (Slovenčina)
  24. Slovenian (Slovenščina)
  25. Spanish (Español)
  26. Swedish (Svenska)
  27. Turkish (Türkçe)




  • Scroll down for a demo, credit purchase, classifier customization and upgrade options.


  • Click here to visit the Language Detection API documentation for implementation instructions and more information.


  • Click here to go to the management dashboard.



Feel free to test our language detection using the simple demo below. Copy-paste or type a text in one of the supported languages, press "detect language", and the result will be shown right of the text field. 


API Use and Pricing

The use of this API costs 1 credit per text-item. For each credit you can have one piece of text (e.g. one tweet or one review) analysed, regardless of it's size.

Commercial and large-scale use

Depending on your requirements, it is possible to pre-purchase credits, to subscribe for on-going processing, or to request a custom offer. Purchases can be processed by PayPal, or as international bank transfer.

Demo and non-commercial use

All our API's allow demo and testing use for free. You can request an API key to test our API's using the form below, after which an API key with 5000 credits will be e-mailed to the provided e-mail address. The use of the API beyond this limit requires a commercial account and a API key. We will never share your e-mail address with anyone, and use it only to prevent the abuse of the demo functionality. At any time you can upgrade your demo key by adding purchased credits to it, or by switching to a subscription plan. All API use is subject to the API Licensing Agreement and our Terms and Conditions. By requesting a demo key through this website, you state having read, understood and agreed to the terms set out in both documents.

Purchase credits

Pre-Purchased credit

  • You are running a campaign, building a proof-of-concept for a product, researching a concept or otherwise don't require ongoing processing of data.


  • You can pre-purchase the processing of a set number of data units with no strings attached.

Recurrent processing

  • You are in a production environment where you need recurrent processing of data for a foreseeable amount of time.


  • It is more economical to subscribe for (monthly) recurrent processing.The data unit limit will be reset  after each month of use.


  • If you still have pre-purchased credit attached to your API key and wish to switch to the recurrent processing service, the duration of the service will be extended for the remaining value of your pre-purchased credits.


  • The minimal duration of a subscription is six months, after which the subscription can be cancelled monthly!

Custom classifiers, large data volumes, on-site processing

  • You have a domain-specific application (for instance, processing financial texts), and you absolutely need the highest possible accuracy. We can create a domain-specific, custom-tailored classifier solution for you.


  • You are (recurrently) processing data volumes larger than those offered by the subscription plans outlined under "Recurrent processing", or you require specific guarantees of uptime/availability/service. We can help you.


  • You require all data processing to happen within your own network, and therefore you need a on-site, unlimited processing solution. This is possible.
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Contact us with your custom inquiry. 

It is also possible to receive an official offer for the use of our services by contacting us. Payments can also be made using international bank transfers. All stated prices exclude VAT (where applicable).

All API use is subject to the API Licensing Agreement and our Terms and Conditions. By conducting a purchase through this website, you state having read, understood and agreed to the terms set out in both documents.