Obooko helps readers discover, read online, and download free eBooks legally. The platform partners with authors and publishers to offer books in PDF, EPUB, and Kindle formats with direct downloads, ensuring no third-party mirrors or paywalls. Users can access quality reads across various genres including romance, thrillers, non-fiction, classics, poetry, IT & programming, biographies, and YA.

Key features include the ability to read books instantly online using the Obooko Reader without downloading, with auto-save of reading position and sync across phone, tablet, and desktop. Users can download books in PDF, EPUB, or Kindle formats directly to their devices. The platform offers a comfortable reading experience with adjustable text size, light/dark mode, and distraction-free pages. Additional features include creating a free account to build wishlists, rate titles, and get recommendations, with the library growing weekly with new titles.

The platform operates on an ad-supported model similar to YouTube, allowing readers to access content for free while authors earn. Obooko hosts all files and is authorized to share them globally, ensuring legal distribution. The service is designed to be accessible without requiring apps, functioning directly in mobile browsers while still offering download options.

Benefits include immediate access to a vast library of free eBooks, the convenience of reading online or offline, and synchronization of reading progress across multiple devices. Use cases range from casual reading of fiction and romance to educational purposes with non-fiction and textbooks, all available without cost.

Target users include book lovers seeking free legal eBooks, with over 800,000 readers and 11 million downloads. The platform supports authors by providing a free publishing avenue to reach a global audience, with detailed author pages and reader ratings. Technical details include support for web and mobile browsers without app requirements, focusing exclusively on English-language titles.