Janus: Learn Language as You Browse is a free Chrome extension designed to help users learn new languages while navigating the web. By translating common words on the pages you visit, it offers a seamless experience for language learners. This tool is particularly useful for those who want to immerse themselves in a new language without dedicating separate study time. Users can customize their translation settings to ensure that the tool enhances their browsing without being intrusive.

The extension is easy to set up; simply install it and visit a Wikipedia page to adjust your preferences. Recent updates have improved performance and redesigned the interface for better user experience. Janus aims to create an engaging way to learn languages through everyday web browsing, making it a practical tool for both casual learners and more serious language enthusiasts.