SoDu is a Chinese-language online novel search and reading platform that helps readers find recent chapters and fiction from across the web. Its catalogue spans genres including fantasy, martial arts, urban fiction, historical fiction, detective stories, online gaming, science fiction, horror, poetry, and other categories. Readers can browse popular titles, recently updated books, new additions, author recommendations, and rankings based on clicks or collections.

The site describes its pages as clean and free of advertisements and pop-up windows, with an emphasis on quick updates and convenient access to novels. Registered members can use a personal bookshelf to save titles and review their reading history, making it easier to return to books they have previously viewed. SoDu also organizes listings by latest chapters and popularity, helping users discover ongoing stories as well as established titles.

The service identifies itself as a novel search engine that provides links to novels hosted by forums and digital libraries, rather than presenting itself as the original publisher of those works