you could check out this library
https://code.google.com/p/language-detection/
or the ones mentioned in the answer to this question:
题
I want to build a form for the user to fill and submit.
There is a free text field.
How can i check the user didn't enter garbage, like:
fhskdjfhjkdshfkjhsd
maybe like checking 3 random words are in English dictionary
or any other language i choose to check (Hebrew for the moment)
解决方案
you could check out this library
https://code.google.com/p/language-detection/
or the ones mentioned in the answer to this question: