Duden is the authoritative brand for the German language, renowned for its comprehensive range of language-related products and services. More than just a dictionary, Duden offers a wealth of resources, including dictionaries, reference books, educational aids, and a suite of digital products such as apps and software. Their flagship offerings include the Duden-Mentor, an intelligent text-checking assistant that helps users improve their writing by identifying spelling and grammar errors, as well as stylistic issues.

Duden also caters to educational institutions with specialized resources and consulting services, while their online platform provides easy access to language knowledge, writing guidelines, and corrections for common mistakes. The brand emphasizes linguistic diversity and evolves with the changing landscape of the German language by regularly updating its dictionary and providing new publications. With a commitment to promoting language skills for all, Duden continues to be a trusted companion for students, professionals, and anyone looking to enhance their proficiency in German.