Keep your library organized and change the format of your ebooks with Calibre


  • Wide support of formats and devices.
  • Allows the conversion of digital documents.
  • You can download metadata.
  • Includes a news search engine.


  • Could take up a lot of space.

For those who love literature, you’ll know that times have changed and there’s now no need to haul around masses of books; thanks to e-readers, the digital format has taken off and stormed the market. That’s all well and good, but how to manage all of this? Every book is now a file, and with that comes the need to know how to organize it all. For this very reason, there are programs like Calibre, a great ebook manager that helps us get our ebooks under control.

Calibre, the best solution for organizing your library

With Calibre you can organize your titles, with individualized records that which show all of the relevant information—cover included—and the ability to directly access Google Books, Amazon and many more. In short, it’s a way of getting to the actual reading quickly, and you can even configure the Calibre interface with different languages to make it more accessible.

One key question regarding Calibre is how much space it takes up. It’s important to recognize here that Calibre creates its own database, and makes a copy of each book that you add. This can be both a blessing and a curse; you’ll always have a secure backup copy of your favorite titles, however it could end up taking up a lot of space in any hard drive and lead to duplicate files.

In any case, the main aim of Calibre is to provide you with an efficient way of organizing your books. It fulfills its promise; and what’s more, it does so quickly and efficiently.

Don’t know what format to use? Calibre does

A noteworthy feature of Calibre is that it has a fantastic file converter. It pretty much does everything automatically. Calibre is able to recognize the eReader device you connect, which makes everything so much easier when converting ebooks. Even if you’re not sure about what formats are compatible with your eReader, it doesn’t matter; Calibre will work on your behalf.

Calibre is server mode

Something that not many people know is that Calibre is able to act in ‘server’ mode. This means that it’s possible to configure the version of Calibre that you have on your PC, so that it’s accessible from any device connected to the internet, in any part of the world (as long as the PC with Calibre is switched on, of course).

The major advantage, then, is that there’s no need for the books to take up space on your device, and that you can share them with other users via email. Yet another way, then, that Calibre helps you get the most from your collection.

Calibre icon

Type Free (GPL)

Version 3.31.0

Size 61.92 MB

Other versions

3.31.0 3.30.0 3.29.0 3.28.0 3.27.1