calibre: The one stop solution for all your e-book needs. Comprehensive e-book software.

3 days ago · Organise, convert, and manage your eBooks effortlessly with Calibre—a powerful, free tool that puts you in control of your entire digital library. For Windows, macOS and Linux computer systems.

Calibre is a free, open‑source e‑book management suite created by Kovid Goyal in 2006. It offers powerful tools to organize, edit, convert and sync e‑books across devices—making it the go‑to …

Calibre enables users to sort and group e-books by metadata fields.

Jan 31, 2026 · The eBook manager gets a visual upgrade with bookshelves and in-viewer editing.

Jan 30, 2026 · The popular eBook reader and manager app Calibre just got a big update. Calibre 9.0 is now rolling out with a new bookshelf view, more editing options, and much more.

6 days ago · A new version of calibre Portable has been released by PortableApps.com. calibre is an ebook manager, converter, and viewer with support for a variety of formats and devices.