Calibre is an open source e-book library management application that enables you to manage your e-book collection, convert e-books between different formats, synchronize with popular e-book reader devices, and read your e-books with the included viewer.
It acts as an e-library and also allows for format conversion, news feeds to e-book conversion, as well as e-book reader sync features and an integrated e-book viewer.
Calibre's features include: library management; format conversion (all major ebook formats); syncing to e-book reader devices; fetching news from the Web and converting it into ebook form; viewing many different e-book formats, giving you access to your book collection over the internet using just a browser.
What's new in this version:
Calibre has reached 1.0, seven years after it was first released and a year since the last major release. Lots of new features have been added to Calibre in the last year — a grid view of book covers, a new, faster database backend, the ability to convert Microsoft Word files, tools to make changes to ebooks without needing to do a full conversion, full support for font embedding and subsetting, and many more, described in detail here.
Download: Calibre 1.0 for Windows | Portable | Windows 64-bit | 49.1 MB (Open Source)
Download: Calibre 1.0 for MacOS | 80.1 MB
Download: Calibre 1.0 for Linux | 49.8 MB
View: Calibre Website | Release Notes