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The latest release of calibre is 5.17.0. What's new.

Calibre Reader App
Free Download Calibre

Please do not use your distribution provided calibre package, as those are often buggy/outdated. Instead use the Binary install described below.

Download Calibre for Windows now from Softonic: 100% safe and virus free. More than 1403 downloads this month. Download Calibre latest version 2021. Aug 18, 2020 Get your Calibre plugin prepared. (All the plugins are.zip files.) Download and install Calibre on your Windows, Mac, Linux computer. Find “Preference” at the top menu bar and click it. Download calibre 64bit Version: 5.17.0 What's new Alternate download location #1 Alternate download location #2. While you wait for the download to complete, please consider contributing to support the development of calibre. Previous releases of calibre are available here.

Binary install

calibre has a binary install that includes private versions of all its dependencies. It runs on 32-bit and 64-bit Intel compatible machines. To install or upgrade, simply copy paste the following command into a terminal and press Enter:

sudo -v && wget -nv -O- https://download.calibre-ebook.com/linux-installer.sh | sudo sh /dev/stdin

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

Note

If you get an error about an untrusted certificate, that means your computer does not have any root certificates installed and so cannot download the installer securely. If you still want to proceed, pass the --no-check-certificate option to wget, like this: sudo -v && wget --no-check-certificate -nv -O- https://download.calibre-ebook.com/linux-installer.sh | sudo sh /dev/stdin
You must have xdg-utils, wget, xz-utils and python ≥ 2.6 installed on your system before running the installer.
You can uninstall calibre by running sudo calibre-uninstall. Alternately, simply deleting the installation folder will remove 99% of installed files.
You need GLIBC 2.18 or higher and libstdc++.so.6.0.21 (from gcc 5.4.0) or higher to run calibre
If you get an error Could not load the Qt platform plugin xcb you are missing some needed X11-XCB libraries, such as libxcb-xinerama0, for details see here.
You can change the folder calibre is installed into from the default (/opt) like this: sudo -v && wget -nv -O- https://download.calibre-ebook.com/linux-installer.sh | sudo sh /dev/stdin install_dir=/opt Change /opt above to whatever folder you want calibre automatically installed to.
You can also do an 'isolated' install that only touches files inside the installation folder and does not need to be run as root, like this: wget -nv -O- https://download.calibre-ebook.com/linux-installer.sh | sh /dev/stdin install_dir=~/calibre-bin isolated=y

Reverting to a previous version

You can install a previous calibre release, like this: sudo -v && sudo calibre-uninstall && wget -nv -O- https://download.calibre-ebook.com/linux-installer.sh | sudo sh /dev/stdin version=4.23.0 Change 4.23.0 above to whatever version you want installed.

Manual binary install

If you wish to revert to an earlier calibre release or download a calibre upgrade manually, download the tarball of that release from here (choose the 32-bit or 64-bit version, as appropriate). Assuming you want calibre in /opt/calibre, run the following command, changing the path to calibre-tarball.txz below as appropriate: sudo mkdir -p /opt/calibre && sudo rm -rf /opt/calibre/* && sudo tar xvf /path/to/downloaded/calibre-tarball.txz -C /opt/calibre && sudo /opt/calibre/calibre_postinstall

Source install

WARNING: calibre is a highly complex piece of software with lots of very finicky dependencies. If you install from source, you are on your own. Please do not open bug reports or expect any form of support. You have been warned.

If you're still determined to install from source, read on:

Make sure your system has Python 3 installed.
Install the various dependencies listed below
Run the following commands in a terminal:

curl -L https://calibre-ebook.com/dist/src | tar xvJcd calibre* && sudo python3 setup.py install

Dependencies

The up-to-date list of dependencies that the official calibre binaries are bundled with, can be seen in sources.json. While calibre might work with versions of dependencies other than those listed there, it is not tested/supported. In addition to those dependencies various build time requirements such as pkg-config, a C/C++ compiler, etc are needed.

Calibre Reader App

calibre works on Windows 8 and 10.

Download calibre
Version: 5.17.0 What's new
Alternate download location #1
Alternate download location #2

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

Previous releases of calibre are available here.

Note

Free Download Calibre

If you are using Windows 7 or Vista, please use calibre 3.48, which works with all Windows 7/Vista machines, from here. Simply un-install calibre and install 3.48, doing so will not affect your books/settings.