Calibre is an eBook manager, organizer, and reader that can help you organize and catalog your collection. Plus, you can adapt the files to fit your device's reader format.
You can organize your collection by author, publication date or publisher, among others.
One of the most interesting features lets you convert between eBook formats, transform a newsfeed to an eBook or synchronize the eBooks with an external device.
It supports all kinds of formats, both reading and conversion, from the most popular ones like ePub, PDF, txt, or RTF to the export to fb2, OEB or MOBI.
Another one of its most valued features is the possibility to synchronize your books with your eBook reader, be it an Amazon Kindle or other models like Papyre, Cybook or the Sony PRS.
Calibre uses a Cover Flow style interface to navigate through the covers of the books. It also lets you edit its metadata from the interface of the program and explore the collection of eBooks from a web browser.
Frequent questions
Is Calibre a free program?
Yes, Calibre is a free and open-source program, so you won't have to pay to use its features.
Where does Calibre store the ebooks?
Calibre stores the ebooks wherever you want. When you start it for the first time, the app will ask you which folder to use. The folder will be solely managed by Calibre, so do not manually add any ebooks to it, as the program will delete them.
Can I add columns to the Calibre interface?
Yes, you can add columns to the Calibre interface whenever you want. You can sort your ebooks by any field you want, such as ISBN or format.
Can I synchronize my Calibre library across platforms?
Yes, you can synchronize your Calibre library across platforms, provided you use a BookFusion Calibre Plugin. Alternatively, you can manually export the data from your device and import it into another device that also has Calibre installed.
5 reviews 
Comments
Hi, thanks for the software. Can you please explain how is possible to change the dimensions of characters ? Im currently reading an ebook on my kindle, but even if i change dimensions on the device i...See more
Good morning The conversions are definitely good (almost)...if it weren't for the fact that accents never appear (the word is there but without accentuation). Is it possible to fix this? Thanking you,...See more
Perfect for converting eBooks and completing metadata (cover images, flaps, etc.). Supports almost all devices, connect and drag the files, Calibre takes care of converting to .mobi, .epub, or the app...See more
So far... an excellent program both for downloading ebooks and for viewing them!!!!