WITools UI can support variety of languages. Default language is English. It is possible to add two or more other languages and manage translations of necessage UI elements on any page.
First time user visits WITools site, a language is automatically chosen depending on the browser language. If automatic selection is not what user expects, user can set preferred language and this selection is stored in a client-side cookie or server side user profile table. Once a language is chosen, all texts are displayed in the selected language.