Is your e-book collection is a disorganised mess of different formats and competing viewers? It doesn't have to be that way. Calibre is an e-book management tool that will quickly bring order to the situation, and help you get more from the format, and (if you have one) your portable e-book reader.

Calibre 5.3.0 (64-bit): Manage, view, convert, sync and remotely access your e-books with this all-in-one management tool The Finest Hand-Selected Downloads Individually reviewed & tested. Calibre is a complete e-book library manager. Organize your collection, convert your books to multiple formats, and sync with all of your devices. Let Calibre be your multi-tasking digital librarian. Manage, convert, sync, and more. Library management. Calibre keeps things orderly by creating single entries for books that contains multiple formats.

The process starts by letting the program organise your e-books library. Point calibre at your files and it'll quickly (and almost automatically) build a database around your collection, downloading metadata like covers for extra visual appeal. You can then sort and search your books by title, author, date published, rating, custom tags and more, making it quick and easy to find whatever you need.

Calibre can then display your book, too (as long as it's not DRM-protected), with an integrated viewer that handles all the main formats and supports features like table of contents, CSS, printing, searching, embedded fonts and more.

You also get a comprehensive conversion tool that will convert documents in all the main e-book formats (CBZ, CBR, CBC, EPUB, FB2, HTML, LIT, LRF, MOBI, ODT, PDF, PRC, PDB, PML, RB, RTF, TCR, TXT) to any of twelve standard formats (EPUB, FB2, OEB, LIT, LRF, MOBI, PDB, PML, RB, PDF, TCR, TXT).

And there are many surprising extras. Calibre can automatically fetch news from websites or RSS feeds, for instance, then format the results into an eBook. A powerful sync tool will work with many different devices, from dedicated e-book readers like the Kindle to Android phones and the iPhone. And the program even includes an integrated web server that allows you to access your e-book collection from a browser, anywhere in the world.

Note this is the 64-bit version of calibre.

Verdict:

If you've any kind of non DRM-protected e-book collection then you need this amazingly versatile and feature-rich management application. Go download it immediately

The calibre Portable build can be run on any Windows computer running at least Windows 8. It is self contained, your calibre libraries and settings are all kept together in one place.

To use, just run the portable installer and select the location where you would like the Calibre Portable folder. To launch calibre, double click the 'calibre-portable.exe' program inside the Calibre Portable folder.

While you wait for the download to complete, please consider contributing to support the developmentof calibre.

Previous releases of calibre are available here.

Upgrading

If you want to upgrade a previous version of calibre Portable, download the latest version of the installer from here and run it, choosing the location of your previous calibre Portable install. The installer will automatically update calibre Portable.

Precaution

Portable media can occasionally fail so you should make periodic backups of your calibre library. This can be done by making a copy of the 'Calibre Library' folder and all its contents.

Automated install

You can prevent the installer from asking for an install location by running it with a command line argument pointing to the directory for the install. For example:

Calibre Books Download

Multiple libraries

Calibre For Mac

calibre Portable only remembers libraries that are placed inside the portable folder. So while you can open any library located anywhere on your computer with calibre Portable, it will not be remembered on restart unless it is located in the portable folder (i.e. in the same place as the 'Calibre Library' folder).