KOReader
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KOReader is a document viewer for E Ink devices supporting EPUB, PDF, and more.
KOReader is a free and open-source document viewer designed for E Ink devices like Kindle, Kobo, PocketBook, Android, and desktop Linux. It supports a wide range of file formats including EPUB, PDF, DjVu, MOBI, and CBZ. The software offers features like dark mode, custom fonts and dictionaries, SSH access, and plugins for syncing with services like Wallabag and Calibre. Users can also reflow PDFs and annotate documents.
What commenters are saying
Many users praise KOReader for its superior format support, especially native EPUB and PDF handling on Kindle, avoiding conversion hassles. Custom fonts, dark mode, and gesture controls are popular. Some prefer the default Kindle viewer due to formatting issues or complexity. Pro-tips include using the Filebrowser plugin for web-based file transfer, SSH access, and the Z-Library plugin for direct book downloads. Users also value Calibre integration and the ability to sync articles from read-it-later services.