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Lithium: EPUB Reader vs STDU Viewer

A side-by-side look at Lithium: EPUB Reader and STDU Viewer. For an in-depth review of either product, follow the links below.

Lithium: EPUB Reader

Lithium: EPUB Reader

News & Books

Lithium is a free, open-source EPUB reader for Windows, Linux, and macOS. It provides a clean, ad-free reading experience for EPUB ebooks with support for bookmarks, notes, highlights, dictionaries, and more.

epubebookreaderopen-source
STDU Viewer

STDU Viewer

Office & Productivity

STDU Viewer is a free portable software used to open and view various file types like PDFs, images, Microsoft Office documents, emails, archives, EPUB books and more. It supports viewing over 20 file formats and includes features like tabbed browsing, thumbnail previews, bookmarks and annotations.

pdfimagesoffice-documentsemailepubtabbed-browsingannotations