calibre v3.17 Updated

billon on 9 Feb 2018
  • 140MB (uncompressed)
  • Released on 9 Feb 2018
  • 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:

17 comments on calibre  The Portable Freeware Collection Latest Entries Feed

carbonize 2011-06-30 16:43

The best eBook reader management software by far. I have used this since I got a Sony PRS-600 a year or so ago and still use it's built in server for Aldiko on my android devices.


TTwrs 2011-07-02 22:40

.. creates a cache file in ...\Temp\fontconfig\cache
.. creates a registry key with dozens of entries in HKEY_CURRENT_USER\Software\Trolltech


Erkhyan 2011-07-03 09:04

TTwrs: Yes, portable (stores all of its settings in the application folder), but not stealth (leaves non-settings-related stuff on the computer). Besides, it seems that a lot of portable applications leave these Trolltech registry keys behind anyway.


TTwrs 2011-07-03 15:44

Thanks for explaining the Portable/Stealth difference.


webfork 2011-11-13 21:48

Softpedia gave it 5/5 and other reviews have also been very good.


webfork 2013-02-09 19:23

Ton of features and capabilities. It's nice to see a tool that just doesn't have any comparison to commercial alternatives in terms of overall functionality and flexibility. If you're an active user of almost any eReader, it seems at some point you'll at some point need this program to share, convert, manage, or sync multiple devices.


Hugh0202 2013-05-07 20:25

Calibre may be good, but it wants to copy my entire ebook library to another folder/tree! There doesn't seem to be any way to stop this. I also don't see a way for it to add recent acquisitions.


Midas 2013-09-26 22:41

I really wanted to love Calibre. As a specialist, though, I can't swallow its 'black box' paradigm of eBook file organization, flagrantly akin to what iTunes does with media files.

There are many other technical weaknesses, mostly stemming from the dev's 'clean slate' 'can do' approach to (digital) LIS, currently a millenarian but well established field of knowledge.

Impressive program for sure, but one I repeatedly have had to pass...


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!


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?


pister007 2014-08-08 07:47


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


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.


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.


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!!!!


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!! :-)


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


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