Flibusta is an online electronic library offering readers a catalog of books to read online or download free of charge. Its collection includes new releases, popular titles, works by well-known authors, and books organized by series and genre. Readers can find fiction ranging from fantasy, science fiction, romance, mystery, thrillers, adventures, and contemporary prose to classical literature. The library also features nonfiction categories such as psychology, motivation, business, self-development, and practical knowledge and skills.

Books are available in FB2, EPUB, and MOBI formats, providing options for digital reading across compatible devices. Visitors can browse by author, series, or genre, explore popular and highly rated titles, and discover selections highlighted on the site. The catalog includes both Russian-language and translated works, with descriptions that help readers learn about individual stories before choosing a book. Flibusta presents its collection as accessible without registration, allowing users to read online or download titles directly. Its focus is on convenient, free access to a broad range of reading material.