Yes, you can use Katana in pretty much any language. Katana supports applying Google Translate extension functionality to the software that enables using Katana in your native language.

Here's a video with more instructions.

To translate Katana, you can follow these steps:

1. Using a Chrome web browser, add a Google Translate extension from the Chrome Web Store. Go to the Web Store, search for "translate", find "Google Translate" on the list and select "Add to Chrome".

2. Log in to Katana, click on the Google Translate extension icon at the top toolbar of the browser and select "Translate this page".

3. Select your preferred language by clicking on the current language in the new toolbar at the top of the page.

Voilà! Katana is translated to your selected language. 

Note: The translation is made by a machine. It might include some errors and weird stuff but you'll get an idea of what's going on. You can always switch back to English by selecting "Show original".