Calibre alternatives

calibre is a free and open source e-book library management application developed by users of e-books for users of e-books. It has a cornucopia of features divided into the following main categories: Library Management, E-book conversion, Syncing to e-book reader devices, Downloading news from the web and converting it into e-book form, Comprehensive e-book viewer, Content server for online access to your book collection
Calibre alternatives are:
Alfa Ebooks Manager, BookCAT
Here are the latest news about Calibre:

2013 Calibre 1.0 is available for download

WoW! Seven years after it was first released, the free ebook management software Calibre has reached version 1.0. According to the author (Kovid Goyal), lots of new features have been added to calibre in this new version — 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,  an easy to use tool to edit the Table of Contents in ebooks, rewritten PDF Output engine, new tool "Polish books" that allows you to perform various automated cleanup actions on ebooks.

2011 Video: Calibre Tutorial about its features and interface

Kovid Goyal, the creator of the popular book collection management software Calibre created this video tutorial called "How to use Calibre - a look at its features and user interface". It shows some tips of how to optimize your usage of the program user interface. The main window interface consists of four areas: the book list (shows the books in your library), library browser sidebar (allows to browse your collection by various categories like series, publishers, rating...), book detail view (shows the book cover, formats available, comments..) and the upper search bar (allows to find books in your calibre collections). The user interface areas can be risized and hidden. You can also rearrange/hide columns in the book list. Watch the video about this robust library management software.

See also: Top 5 Calibre alternatives

Calibre reviews
mss | 16.06.12 | #
My first inkling that something might be wrong was when I opened the program and it couldn't open it's own quick start guide. XP could not find an application that would open the file. I tried pointing it to calibre.exe (Windows does not list the program so you have to search for it) The program would add the guide to it's library but still could not access it. Wow!
khettich | 21.08.12 | #
Seems complete in its features. Detailed instructions on how to sync with iTunes allows me to manage my e-books on my new iPad3. Incredible free price!
themritech | 29.10.12 | #
seems like they feel the need to reinvent the wheel just to be different. Completely strange interface. Even though I selected in my settings to only import epub and pdf it tried to import practically EVERY file in my documents folder, not just books. weird. Also hangs up a lot on Window 7.
helloszabi | 04.02.13 | #
There is a new alternative to Calibre called Scida
It doesn't convert, but the interface is much better and easy to use.
lukemute | 12.11.13 | #
Really difficult to understand software. But if it's really developed by one person - it's very impressive
Gman | 13.03.15 | #
This is only focusing more on ebook,not suitable for school,church library
Annie | 03.09.15 | #
Calibre won't recognize my Kindle Fire, Can someone help??
ss | 09.03.16 | #
Ok if you only have a few books but gets progressively slower as you add more and eventually grinds to a halt. This is not helped by the near useless functionality that seems to have been thrown in "because". 1 star out of ten for perseverance.
 (to insert a quote, select the text and click #)