小书库 is an online novel search and discovery platform that aggregates listings and links from a range of web fiction sources. Its search engine helps readers find novels by title or author, while genre categories and popularity charts make it easier to browse across options including fantasy, science fiction, romance, history, martial arts, and urban fiction. The site also features recently updated and completed works, rankings for popular books, and lists of new additions, with chapter titles, authors, and update times shown for many entries.

Readers can use the platform to locate the latest chapters and access novel content through links presented on the site. 小书库 promotes an ad-free, pop-up-free reading experience. According to its notice, the displayed chapter material is based on links to external novel sources that are converted for presentation; the site says it does not store the chapter content. It also states that search results do not represent an endorsement of the linked sites or their content, and provides a contact address for copyright concerns.