goot is an application that works using Google Translate. What's the difference? Well, it has a much simpler interface that's easier to use, while still providing results that are as good as on Google Translate.
goot lets you quickly translate between several languages. You can set up a keyboard shortcut to launch it fast whenever you need it.
Finally, although it uses Google Translate, you can also install other plugins from different translation services. That way, you can use different sources when you need to translate texts.