ロゼッタストーンライブラリー is an online language learning platform that allows users to access Rosetta Stone's content. With over 5 million users, this platform offers a wide range of language learning materials that can be accessed on smartphones, tablets, and PCs. Users can manage multiple learning contents on the cloud and easily share them across different devices. The platform also includes an English-Japanese dictionary and TOEIC(R) L&R test preparation programs such as Kikutan.

The key features of ロゼッタストーンライブラリー include the ability to learn 24 languages, seamless synchronization of learning progress across multiple devices, a clear overview of the progress in various learning contents, and an English-Japanese dictionary.

Please note that each learning content is available for a fee.