Calibre
E-book library manager that can view, convert, and catalog e-books in most of the major e-book formats and provides a built-in Web server for remote clients.
It provides a comprehensive toolkit for handling e‑books, allowing users to view, convert, edit, and catalog titles across most major formats. The software can synchronize with e‑book reader devices and retrieve online metadata, and it can fetch newspapers and transform them into e‑book files for easier reading. A built‑in Web server lets remote clients access the library, and the application runs on Linux, Windows, and macOS.
The program targets readers, librarians, and anyone who maintains a personal digital book collection, offering features such as format conversion, metadata management, and device communication without requiring external services. Its open‑source GPL‑3.0 licence means the code can be self‑hosted, modified, and redistributed freely.
Distinctive aspects include the integrated Web interface for remote access, automatic online metadata fetching, and the ability to convert newspaper content into e‑book form, all bundled in a stable, cross‑platform package maintained by a volunteer community.
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