calibre v3.46.0 Updated

billon on 19 Jul 2019
  • 140MB (uncompressed)
  • Released on 19 Jul 2019
  • Suggested by I am Baas

calibre is an e-book library management application with a variety of useful functions including device-specific e-book conversion, news download and conversion, viewer and content server for online access to your collection.

The program syncs automatically with many different physical devices. It supports a variety of e-book formats, as well as e-books contained in RAR and ZIP archives.

Cross-platform with clients available for Mac and Linux. Alternatively, X-calibre is stealth and automatically adjusts paths. A WinXP-compatible version is available.

System Requirements: Vista / Win7 / Win8 / Win10
Writes settings to: Application folder
Stealth: ? No. HKCU\Software\Trolltech
Unicode support: Yes
License: GNU GPL
How to extract: Download the "portable installer" and extract to a folder of your choice. Launch calibre-portable.exe.
Similar/alternative apps: TEBookConverter
What's new? See:

18 comments on calibre  The Portable Freeware Collection Latest Entries Feed

olliebean 2018-02-24 08:29

Incidentally there's an official portable version available on the Calibre website (, which works fine and appears to be stealth. (No Trolltech keys.)


donald 2015-07-24 19:38

Per CALIBRE Version: 2.33.0 beyond version 1.48x CALIBRE no longer supports XP.
Download XP Compatible from


filobus 2015-05-28 07:38

@bzl333 weel, you have to bear criticism if you want to improve! (unkind criticism is another matter)
Calibre is "huge" (maybe it have to be like that, it's not a criticism, it's just a pity!), and I too don't like at all its way to make its own library (I have to put there only books I want to convert, and remove them, not a user friendly behaviour). It's a little too complicated, but it does its job well!
For me it's a must-have but also a could-be-better!! :-)


bzl333 2015-02-06 18:08

@Tom - well its FREEEEEEEE so you got more than you paid the evil author of the program. also will be nice if you spend thousands of hours developing a free program and then let others criticize you with BIG BOLD ANGRY CAPITALS!!!!


TomSJr 2015-01-23 18:49

Calibre has become bloated and slow over the last 2 years. I just can't use it anymore. I stick with Calibre 0.8.66 (August 2012) thru Portable Calibre 0.9.17 (FEB 2013). Anything past June of 2013, you are asking for trouble. I can only give this 1 star for the newer versions. I don't like how it puts a preference in your registry. THAT IS NOT GOOD FOR A PORTABLE TOOL. Portable is supposed to be PORTABLE and it should not place ANYTHING in your registry or on your PC, but it does. TO ME, THAT IS JUST PLAIN WRONG AND YOU SHOULD BE VERY CAREFUL ABOUT CALIBRE.


Hatshji 2015-01-04 08:50

Hi Folks.

The last version that works on XP is 2.0.0. I have this version as the latest for XP in use.
It dosen't matter if it's the installed or the portable version.


webfork 2014-08-10 01:50

smaragdus: according to ghacks, your best bet is to convert it. As to an alternative to calibre, I'd try TEBookConverter


pister007 2014-08-08 07:47


smaragdus 2014-03-07 20:35

I don't like it, neither the interface, nor the way it organizes its database copying all books in another own folder. The best part of it is the powerful converter. I used it mainly because its reader is the only one I know that is able to open LIT files. But tolerate all the bloat for reading a specific format, this is absurd. Does anyone know a decent reader capable of reading LIT files?


merryflip 2013-12-12 02:59

well, I've just try to use Calibre ebook software and find it nice, yet I also know such one useful blog that introduces the easiest way to

Hope it helps, Calibre is one really great tool to have a try!


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