Epub Reader Ufumbuzi is a web-based application designed for reading electronic books in the EPUB format. Its primary function is to allow users to load EPUB files, read them, and track their reading progress without requiring any server uploads. All processing occurs locally within the user's browser, ensuring that book contents remain private and are not transmitted to external servers. The tool is accessible on Android, Windows, Linux, and iOS devices through any modern web browser, with no installation needed. The reader offers a set of features intended to enhance the reading experience. Users can highlight text passages and navigate to different sections of a book using its table of contents. The application includes multiple color themes, adjustable font size controls, and a clean, distraction-free interface. It also automatically saves the user's reading position, so they can continue where they left off, and displays a reading progress percentage for each book. Typical use cases involve individuals who want to read EPUB files on various devices without committing to a dedicated app or platform. The workflow is straightforward: a user uploads one or more EPUB files through the browser interface, the application loads the book content and analyzes its table of contents, and the user can begin reading immediately. Progress and highlights are retained locally, allowing for seamless continuation across sessions. The tool is particularly suited for readers who prioritize privacy and prefer not to rely on external cloud services for their ebook library.