SoDu is an online Chinese-language novel search and reading site that helps readers find current chapters and links to novels from forums and book libraries. Its catalogue spans genres including fantasy, martial arts and cultivation, urban fiction, historical fiction, detective and mystery, online games, science fiction, horror, poetry, and other writing. The site features popular and recently updated titles, rankings by clicks and collections, author recommendations, and lists of newly added books, making it easier to discover stories and follow ongoing series.

Readers can browse latest-chapter information and access novel links through the service. Registered members can save books to a personal bookshelf and use reading-history records to return to previously viewed stories; the site also offers a mobile-reading option and a Traditional Chinese version. SoDu describes its experience as fast-updating, ad-free, and uncluttered.

It states that it functions as a novel search engine, providing links rather than presenting itself as the source of the novels, and invites copyright holders to contact it to request removal of links