SoDu is a Chinese-language novel search and reading platform that helps readers find recent chapters and links to a wide range of online fiction. Its catalogue spans genres including fantasy, martial arts and cultivation, urban romance, historical fiction, detective stories, online games, science fiction, horror, poetry and essays, and other categories. Readers can browse popular titles, rankings, new additions, recent updates, and recommended books, or search for stories by title and author.

The site presents its service as a fast-updating, advertisement-free experience with uncluttered reading pages. Registered members can use a personal bookshelf to collect novels and access records of previously viewed books, making it easier to return to ongoing reads. SoDu describes itself as a search engine that provides links to novels hosted by various forums and online libraries, rather than presenting itself as the source of those works.

It also invites rights holders to report links they believe infringe copyright, so they can be reviewed and removed