SoDu is an online search and reading platform for Chinese-language novels, helping readers find links to recent chapters across a range of forums and digital book collections. Its catalogue spans fantasy and magic, martial arts and cultivation, urban fiction, historical stories, detective and mystery, online games, science fiction, horror, poetry, and other genres. The site organizes titles through popular and recently updated lists, rankings, author recommendations, and category pages, making it easier to browse for new stories or follow familiar series.

SoDu describes its pages as clean and free of advertisements and pop-up windows, with a focus on quick access to novel updates. Registered members can use a personal bookshelf to save titles and review reading history, including recently viewed stories; the site also offers mobile reading and a Traditional Chinese interface. Rather than presenting itself as the publisher of the novels, SoDu identifies its service as a search engine that provides links to novels hosted by other forums and libraries