calibre Portable 3.21 has been released by PortableApps.com. calibre is an ebook manager, converter, and viewer with support for a variety of formats and devices. It's in PortableApps.com Format so it can easily integrate with the PortableApps.com Platform. And it's open source and completely free.
calibre is a powerful and easy to use e-book manager. It’ll allow you to do nearly everything and it takes things a step beyond normal e-book software. It supports conversions from nearly all ebook formats and has specific support for numerous ebook devices.
PortableApps.com Installer / PortableApps.com Format
calibre Portable is packaged in a PortableApps.com Installer so it will automatically detect an existing PortableApps.com installation when your drive is plugged in. It supports upgrades by installing right over an existing copy, preserving all settings. And it's in PortableApps.com Format, so it automatically works with the PortableApps.com Platform including the Menu and Backup Utility.
calibre Portable is available for immediate download from the calibre Portable homepage. Get it today!