The consequence of publishing applications on the web is that anyone from anywhere in the world (and beyond since they have the Internet on the International Space Station) can view your work. When your target audience is in one country, a single language is often enough. But what can you do when you want to serve your website to many international visitors in their native tongue?

Application Express offers built-in functionality to translate applications, without having to rebuild the application completely.

This chapter is about how we can fully translate an application using those built-ins and adding something of ourselves to easily switch between languages.