calibre Portable 9.1.0 (ebook manager, viewer, converter) Released

John T. Haller's picture
Submitted by John T. Haller on February 2, 2026 - 4:33pm

A new version of calibre Portable 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.

Update automatically or install from the portable app store in the PortableApps.com Platform.

Features

Screenshotcalibre 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.

Learn more about calibre...

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.

Download

calibre Portable is available for immediate download from the calibre Portable homepage. Get it today!

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Comments

I'm behind a corporate proxy, so this might be on my end, but I was able to update another app at the same time.

When I manually browse to the sourceforge directory, I see a different filename, calibrePortable_9.1.0.paf.exe

(underscore vs none)

Download Error: File Not Found (404) on file
[link removed]

Mahalo for providing a great tool, I really appreciate PortableApps. I can usually figure out how to install software, but it has been invaluable for streamlining the process so I can share tools with my less technical coworkers.

John T. Haller's picture

Should be working now. Thanks for the heads up.

Sometimes, the impossible can become possible, if you're awesome!