: A highly customizable free reader that connects to various online book sources. Thorium Reader

: The app primarily handles ePub and PDF files, ensuring compatibility with the most popular eBook formats.

: A powerhouse for heavy-duty library management and format conversion. Freda ePub eBook Reader

: Once the download is complete, open the file to begin the installation process on your Windows PC.

: Upon opening, you can import individual files or scan entire folder trees to automatically index your collection. Pros and Cons Free to download and use Limited annotation and highlighting tools Stylish, intuitive user interface Interface may feel outdated to some Efficient metadata and organization tools Occasional bugs during initial folder scanning Cross-device sync via OneDrive Availability may be restricted by region Best Alternatives