ಕನ್ನಡ language support

There is no support for Kannada language.

Please add support for Kannada language. I want to know how to contribute.

I suggest you fork LT at github and start adding rules as documented at Development Overview - LanguageTool Wiki. As long as there’s no Kannada language in LT, you can use another language, remove its rules, and add your rules instead.

Wonderful.

Is this tool supported on all platforms? Windows, Mac, Linux, and mobile platforms iOS, android, windows mobile?

I will start working on this.

LT is written in Java, so it runs where ever a Java Runtime Environment (JRE) is available.