Spindle

Native cross-platform EPUB reader with vertical writing support

Desktopfree

Spindle is a native EPUB reader for Windows, macOS and Linux, built with C++ and Qt. It renders each book with full fidelity to its own CSS via Qt WebEngine, including Japanese vertical writing when the EPUB specifies it. It is aimed at desktop readers who want accurate rendering of EPUB styling, particularly for Japanese-language books.

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