Size. A great reel to manage e-books

Last updated on 12 May 2026

Size is free software that allows Manage all your e-books. If you are looking for a free and free tool that allows you to sort, sort, read, convert all your e-books in any format, look no further, Calibre is the best. Precious and unavoidable.

A powerful tool that adapts to all computers, e-readers and e-book formats. It is also completely free, open source and it is ideal for amateur users Just like for IT experts.

The best application to manage e-books

Calibre is a Open Source Software It was almost born at the same time as e-books. A historical companionship that allowed it to adapt to developments in the sector as well as to the needs of end-users. Powerful, easy to use, it allows you to juggle all the ebook files of our e-readers. It is an excellent answer to the proprietary formats and other quirks of major operators in the e-book industry. I have been using Calibre for many years, among its many functions, the one that allows converting a file from one format to another with a single click has saved me the bet more than once.

A library for all your e-books

Calibre will manage all your e-books in a large digital library on your computer. When you need it, you can send one or more titles to your e-reader. The Calibre library will allow you to keep but also to classify all your e-books. Throw your files in the Calibre window, the tool will know download all metadata your e-books (title, author, publisher, ISBN, labels, cover or abstract). You can then display your book collections by themes, by author, by titles, by cover, by tag, by comment … Whether you have dozens or hundreds of books, Calibre will allow you to find a book without difficulty. You can even read it on the screen since Calibre had the good idea to integrate an e-book reader to his software.

A magic reel to juggle your ebook files

Calibre is a universal solution to support different readers and related formats. The software almost supports all e-readers and new ones are added to each update. You can transfer your e-books from one device to another in seconds. You do not need any additional tools. Calibre will send the Best File Format to your device from your library by converting it automatically if necessary.

Calibre can convert dozens of file types. When converting, you can also automatically change the style of the book. And if you suddenly want to become a writer or publisher, know that Calibre can also be used to create an ebook from Zero in the most popular formats, EPUB and MOBI.

Calibre can also serve as a server to allow you to access your books remotely. However, it is a bit, a lot, complicated if, like me, you are not a true computer scientist.

Calibre is an excellent all-in-one solution for managing all your e-books.

The Calibre Software is available in one application for all operating systems: Mac, Windows, Linux, and can even be installed on a simple USB stick.