This free ebook reader deserves a chance: you’re going to love it

For those tired of the limitations of mainstream ebook platforms like Kindle or Google Books, KOReader offers a refreshing and powerful alternative. This open-source app is not only free, but also impresses with a long list of features, wide compatibility, and a user-focused reading experience.

A flexible, open-source reader with pro-level tools

KOReader works across multiple devices, from e-readers like Kindle, Kobo, and PocketBook, to Linux and Android phones and PCs. While installing it on e-readers might require a jailbreak, the rewards are clear: a faster, smoother and more customizable reading experience.

It supports an extensive range of formats, including EPUB, PDF, DjVu, MOBI, DOC, HTML and more. PDF users will especially appreciate its reflow and zoom features, and the ability to remove margins or restructure scanned pages using K2pdfopt.

A perfect fit for e-ink devices and advanced users

KOReader is optimized for e-ink screens, offering an interface designed for clarity and usability, with paginated menus, adjustable contrast, and quick page turning. It even outperforms native software on older devices by reducing load times and page change lag.

The app also integrates with tools like Calibre and Wikipedia, and supports wireless book transfers, StarDict dictionaries, OPDS catalogs and even SSH access. Power users can expand it further through plugins or tweak its source code to fit their needs.

A fan favorite among tech-savvy readers

On forums like Hacker News, KOReader has a strong following. Users praise its deep customization, open development model and superior handling of technical documents, especially on e-ink devices. While its interface may seem dense at first, most agree that the initial setup is worth it.