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Calibre Web

Docker Stars Docker Pulls

⚠️IMPORTANT: Hello together, since I have almost no time to maintain this project anymore, I hereby discontinue it and recommend you to switch to the better maintained image of linuxserver/calibre-web. Btw. thank you to @OzzieIsaacs and his team that they still work on Calibre Web to make it better and still adding additional features over such a long time 👍

Calibre Web - Manage your Calibre e-book collection

Calibre Web is a web app providing a clean interface for browsing, reading and downloading eBooks using an existing Calibre database.


Calibre Web comes with the following features:

  • Bootstrap 3 HTML5 interface
  • full graphical setup
  • User management
  • Admin interface
  • User Interface in english, french, german, polish, simplified chinese, spanish
  • OPDS feed for eBook reader apps
  • Filter and search by titles, authors, tags, series and language
  • Create custom book collection (shelves)
  • Support for editing eBook metadata
  • Support for converting eBooks from EPUB to Kindle format (mobi/azw)
  • Restrict eBook download to logged-in users
  • Support for public user registration
  • Send eBooks to Kindle devices with the click of a button
  • Support for reading eBooks directly in the browser (.txt, .epub, .pdf)
  • Upload new books in PDF, epub, fb2 format
  • Support for Calibre custom columns
  • Fine grained per-user permissions
  • Self update capability

If you want to know more you can head over to the Calibre Web project site: https://github.com/janeczku/calibre-web.

And if you are interested in the original Calibre ebook management tool then look at the project site: https://calibre-ebook.com/.


2021-10-22 - v1.6.0 - v1.6.1

  • updated dependencies from requirements.txt and optional-requirements.txt - see issue calibre-web AttributeError: 'NoneType' object has no attribute 'exempt' #109 - thanks to @wanoo for the related PR
  • updated Calibre ebook-convert from 5.3.0 to 5.30.0
  • upgrade of sgerrand/alpine-pkg-glibc to version 2.33-r0 needed by Calibreebook-convert

For previous changes see at full changelog.


  • running Calibre Web under its own user (not root)
  • changing of the UID and GID for the Calibre Web user
  • no usage of NGINX inside the container, only the Calibre Web application is served as single application without any supervisor
  • Google Drive integration is included
  • creation of gdrive.db symlink at /books/gdrive.db for external access like backup possibility
  • creation of app.db symlink at /books/app.db for external access like backup possibility
  • support of Amazon kindlegen and Calibre ebook-convert tool to convert to MOBI
  • Calibre ebook-convert uses glibc and therefore additional packages from ArchLinux are needed

Hints & Tips

  • if you need SSL support similiar to the original Docker Container janeczku/calibre-web then use an additional NGINX or Apache HTTP Server as Reverse-Proxy, e.g see jwilder/nginx-proxy
  • if you don't specify PGID and PUID values the default PGID and PUID of the image are used, and if they are used then the mapped host volume/directory which is alligned to /books must have read-write-execute permission for others , otherwise the configuration of Calibre-Web can't be finished :-|
  • for Synology Users - don't map a top-level volume directory from the NAS as /books volume, e.g. /volume1/books because it results into problems with directory permissons. Create instead a subdirectory calibre at /volume1/books and map then /volume1/books/calibre as volume for /books

Configuration at first launch

  1. Point your browser to http://hostname:<HTTP PORT> e.g. http://hostname:8083
  2. Set Location of your Calibre books folder to the path of the folder where you mounted your Calibre folder in the container, which is by default \books. So enter at the field Location of Calibre database the mapped volume \books.
  3. Hit Submit then Login.

Default admin login:

  • Username: admin
  • Password: admin123

After successful login change the default password and set the email adress.

To access the OPDS catalog feed, point your Ebook Reader to http://hostname:<HTTP PORT>/opds

Configuration of a converter

at Admin -> Basic Configuration -> E-Book converter you've to set the converter which you want to use:

  • for the option Use Kindlegen set the Path to convertertool to /calibre-web/app/vendor/kindlegen and at About you will see then kindlegen Amazon kindlegen(Linux) V2.9 build 1028-0897292
  • for the option Use calibre's ebook converter set the Path to convertertool to /opt/calibre/ebook-convert and at About you will see then Calibre converter ebook-convert (calibre 3.30.0)

Known issue

  1. if you map the old/existing app volume like -v /volume1/docker/apps/calibre-web/app:/calibre-web/app then you'll get the following issue at startup
[INFO] Checkout the latest Calibre-Web version ...
[INFO] Autoupdate is active, try to pull the latest sources for Calibre-Web ...
[INFO] ... current git status is
fatal: not a git repository (or any parent up to mount point /calibre-web)
Stopping at filesystem boundary (GIT_DISCOVERY_ACROSS_FILESYSTEM not set).
[INFO] ... pulling sources
fatal: not a git repository (or any parent up to mount point /calibre-web)
Stopping at filesystem boundary (GIT_DISCOVERY_ACROSS_FILESYSTEM not set).
[INFO] ... git status after update is
fatal: not a git repository (or any parent up to mount point /calibre-web)
Stopping at filesystem boundary (GIT_DISCOVERY_ACROSS_FILESYSTEM not set).

To solve the issue delete the old files at -v /volume1/docker/apps/calibre-web/app:/calibre-web/app before you create and start the container.


Create the container:

docker create --name=calibre-web --restart=always \
-v <your Calibre books folder>:/books \
[-v <your Calibre Web application folder>:/calibre-web/app] \
[-v <your Calibre Web kindlegen folder>:/calibre-web/kindlegen`]
[-v <your Calibre Web config folder>:/calibre-web/config \]
[-e USE_CONFIG_DIR=true \]
[-e APP_REPO=https://github.com/janeczku/calibre-web.git \]
[-e APP_BRANCH=master \]
[-e CONTAINER_TIMEZONE=<container timezone value> \]
[-e PGID=<group ID (gid)> -e PUID=<user ID (uid)> \]
-p <HTTP PORT>:8083 \


docker create --name=calibre-web --restart=always \
-v /volume1/books/calibre:/books \
-v /etc/localtime:/etc/localtime:ro \
-e PGID=65539 -e PUID=1029 \
-p 8083:8083 \


docker create --name=calibre-web --restart=always \
-v /volume1/books/calibre:/books \
-v /volume1/docker/apps/calibre-web/config:/calibre-web/config \
-e USE_CONFIG_DIR=true \
-e PGID=65539 -e PUID=1029 \
-p 8083:8083 \

Start the container:

docker start calibre-web



The parameters are split into two parts which are separated via colon. The left side describes the host and the right side the container. For example a port definition looks like this -p external:internal and defines the port mapping from internal (the container) to external (the host). So -p 8080:80 would expose port 80 from inside the container to be accessible from the host's IP on port 8080. Accessing http://'host':8080 (e.g. would then show you what's running INSIDE the container on port 80.


  • -p 8083 - http port for the web user interface
  • -v /books - local path which contains the Calibre books and the necessary metadata.db which holds all collected meta-information of the books
  • -v /calibre-web/app - local path for Calibre Web application files; set this volume if you want to use Google Drive
  • -v /calibre-web/kindlegen - local path for Calibre Web kindlegen application
  • -v /etc/localhost - for timesync - optional
  • -v /calibre-web/config - local path for Calibre Web config files, like app.db and gdrive.db; IMPORTANT: the environment variable USE_CONFIG_DIR must be set to true - optional
  • -e USE_CONFIG_DIR=true - activate the usage of a dedicated configuration directory, otherwise the books directory will be used (default) - optional
  • -e APP_REPO - set it to the Calibre Web GitHub repository; by default it uses https://github.com/janeczku/calibre-web.git - optional
  • -e APP_BRANCH - set which Calibre Web GitHub repository branch you want to use, master (default branch) - optional
  • -e SET_CONTAINER_TIMEZONE - set it to true if the specified CONTAINER_TIMEZONE should be used - optional
  • -e CONTAINER_TIMEZONE - container timezone as found under the directory /usr/share/zoneinfo/ - optional
  • -e PGID for GroupID - see below for explanation - optional
  • -e PUID for UserID - see below for explanation - optional

Container Timezone

In the case of the Synology NAS it is not possible to map /etc/localtime for timesync, and for this and similar case set SET_CONTAINER_TIMEZONE to true and specify with CONTAINER_TIMEZONE which timezone should be used. The possible container timezones can be found under the directory /usr/share/zoneinfo/.


  • UTC - this is the default value if no value is set
  • Europe/Berlin
  • Europe/Vienna
  • America/New_York
  • ...

Once the container is running you can get all possible timezones as tree via the command docker exec -it <CONTAINER> tree /usr/share/zoneinfo

See also at possible timezone values.

Don't use the value localtime because it results into: failed to access '/etc/localtime': Too many levels of symbolic links

Container Locale

By default the container comes with the following locale environment setting:

    # - LANG, LANGUAGE, LC_ALL: language dependent settings (Default: en_US.UTF-8)

To set a different locale set the corressponding environment settings while container creation via -e LANG, -e LANGUAGE, -e LC_ALL. Look here at availaible locale which values are supported - e.g. for de_DE you've to use then de_DE.UTF-8 as value, here an example -e LANG=de_DE.UTF-8.

To check what locale is active inside the container:

root@NAS:~# docker exec -it calibre-web bash

bash-4.4# echo $LANG $LANGUAGE $LC_ALL
en_US.UTF-8 en_US.UTF-8 C

When you execute the ebook-convert tool inside the container you'll get a translated output according to the active locale:

bash-4.4# ebook-convert 
Usage: ebook-convert input_file output_file [options]

Convert an e-book from one format to another.

input_file is the input and output_file is the output. Both must be specified as the first two arguments to the command.

The output e-book format is guessed from the file extension of output_file. output_file can also be of the special format .EXT where EXT is the output file extension. In this cas
e, the name of the output file is derived from the name of the input file. Note that the filenames must not start with a hyphen. Finally, if output_file has no extension, then it
 is treated as a directory and an "open e-book" (OEB) consisting of HTML files is written to that directory. These files are the files that would normally have been passed to the
 output plugin.

After specifying the input and output file you can customize the conversion by specifying various options. The available options depend on the input and output file types. To get
 help on them specify the input and output file and then use the -h option.

For full documentation of the conversion system see

Whenever you pass arguments to ebook-convert that have spaces in them, enclose the arguments in quotation marks. For example: "/some path/with spaces"

  --version       show program's version number and exit

  -h, --help      show this help message and exit

  --list-recipes  List builtin recipe names. You can create an e-book from a
                  builtin recipe like this: ebook-convert "Recipe Name.recipe"

Created by Kovid Goyal <kovid@kovidgoyal.net>

After change to e.g. de_DE.UTF-8 you'll see the following translated output:

bash-4.4# export LANG=de_DE.UTF-8; LANGUAGE=de_DE.UTF-8; LC_ALL=de_DE.UTF-8
bash-4.4# echo $LANG $LANGUAGE $LC_ALL
de_DE.UTF-8 de_DE.UTF-8 de_DE.UTF-8

bash-4.4# ebook-convert 
Verwendung: ebook-convert Quelldatei Ausgabedatei [Optionen]

Ein eBook von einem Format in ein anderes konvertieren.

Quelldatei ist die Eingabe, Ausgabedatei die Ausgabe. Beide müssen dem Befehl als die ersten beiden Argumente übergeben werden.

Das Zielformat wird durch die Dateiendung von Ausgabedatei bestimmt. Ausgabedatei kann auch das Spezialformat .EXT besitzen, wobei EXT die gewünschte Dateinamenerweiterung ist. I
n diesem Fall wird der Name der Ausgabedatei aus dem Namen der Quelldatei abgeleitet. Bitte beachten: Die Dateinamen dürfen nicht mit einem Bindestrich beginnen. Zu guter Letzt, 
falls Ausgabedatei keine Dateinamenerweiterung besitzt, wird der Name als Verzeichnis behandelt, und ein "open ebook" (OEB), das aus HTML-Dateien besteht, wird in dieses Verzeich
nis geschrieben. Diese Dateien sind jene, die normalerweise an die Ausgabe-Erweiterung übergeben würden.

Nach der Angabe von Quell- und Ausgabedatei kann die Konvertierung noch durch die Angabe verschiedener Optionen angepasst werden.  Welche Optionen hier zur Verfügung stehen, häng
t von den Dateitypen der Quell- und Ausgabedateien ab.  Um dazu Hilfe zu erhalten, geben Sie die Quell- und Ausgabedatei gefolgt von der Option -h an.

Die komplette Dokumentation des Konvertierungssystems findet sich unter

Wann immer Sie Argumente mit Leerzeichen an ebook-convert weitergeben, müssen diese Argumente in Anführungsstriche gesetzt werden. Zum Beispiel: "/some path/with spaces"

  --version       Programmversion anzeigen und beenden

  -h, --help      Diesen Hilfetext anzeigen und beenden.

  --list-recipes  Anzeigen der Namen der integrierten Nachrichtenquellen. Sie
                  können aus einer integrierten Quelle ein eBook wie folgt
                  erstellen: ebook-convert "Recipe Name.recipe" output.epub

Erstellt von Kovid Goyal <kovid@kovidgoyal.net>

To check which locale are supported execute the following command:

bash-4.4# /usr/glibc-compat/bin/locale -a



User / Group Identifiers

Sometimes when using data volumes (-v flags) permissions issues can arise between the host OS and the container. We avoid this issue by allowing you to specify the user PUID and group PGID. Ensure the data volume directory on the host is owned by the same user you specify and it will "just work" ™.

In this instance PUID=1001 and PGID=1001. To find yours use id user as below:

  $ id <dockeruser>
    uid=1001(dockeruser) gid=1001(dockergroup) groups=1001(dockergroup)

Container Directory Structure

   |- books
   |- calibre-web
       |- app
       |    |- "all Calibre Web Application files"
       |    |- app.db -> /calibre-web/config/app.db
       |    |- gdrive.db -> /calibre-web/config/gdrive.db
       |    |- calibre-web.log
       |    |- cps 
       |    |    |- *.py
       |    |    |- *.pyc
       |    |
       |    |- vendor
       |         |- kindlegen -> /calibre-web/kindlegen/kindlegen
       |- config
       |    |- app.db
       |    |- gdrive.db
       |- kindlegen
            |- EULA*.txt
            |- KindleGen Legal Notices*.txt
            |- docs
            |- kindlegen
            |- manual.html


Shell access whilst the container is running: docker exec -it calibre-web /bin/bash

Upgrade to the latest version of Calibre Web: docker restart calibre-web

To monitor the logs of the container in realtime: docker logs -f calibre-web

To monitor the logs of Calibre Web: docker exec -it calibre-web tail -f /calibre-web/app/calibre-web.log

Show used base image version number of Calibre Web: docker inspect -f '{{ index .Config.Labels "image.base.version" }}' calibre-web

Show used image version number of Calibre Web: docker inspect -f '{{ index .Config.Labels "image.version" }}' calibre-web

For Synology NAS users

Login into the DSM Web Management

  • Open the Control Panel
  • Control Panel > Privilege > Group and create a new one with the name 'docker'
  • add the permissions for the directories 'downloads', 'video' and so on
  • disallow the permissons to use the applications
  • Control Panel > Privilege > User and create a new on with name 'docker' and assign this user to the group 'docker'

Connect with SSH to your NAS

  • after sucessful connection change to the root account via
sudo -i


sudo su -

for the password use the same one which was used for the SSH authentication.

  • create a 'docker' directory on your volume (if such doesn't exist)
mkdir -p /volume1/docker/
chown root:root /volume1/docker/
  • get your Docker User ID and Group ID of your previously created user and group
id docker
uid=1029(docker) gid=100(users) groups=100(users),65539(docker)
  • get the Docker image
docker pull technosoft2000/calibre-web
  • create a Docker container (take care regarding the user ID and group ID, change timezone and port as needed)
docker create --name=calibre-web --restart=always \
-v /volume1/books/calibre:/books \
-e PGID=65539 -e PUID=1029 \
-p 8083:8083 \
  • check if the Docker container was created successfully
docker ps -a
CONTAINER ID        IMAGE                           COMMAND                CREATED             STATUS              PORTS               NAMES
40cc1bfaf7be        technosoft2000/calibre-web      "/bin/bash -c /init/s" 8 seconds ago       Created 
  • start the Docker container
docker start calibre-web
  • analyze the log (stop it with CTRL+C)
docker logs -f calibre-web
      ,/   .`|                                   
    ,`   .'  : .--.--.        ,----,        ,-.  
  ;    ;     //  /    '.    .'   .' \   ,--/ /|  
.'___,/    ,'|  :  /`. /  ,----,'    |,--. :/ |  
|    :     | ;  |  |--`   |    :  .  ;:  : ' /   
;    |.';  ; |  :  ;_     ;    |.'  / |  '  /    
`----'  |  |  \  \    `.  `----'/  ;  '  |  :    
    '   :  ;   `----.   \   /  ;  /   |  |   \   
    |   |  '   __ \  \  |  ;  /  /-,  '  : |. \  
    '   :  |  /  /`--'  / /  /  /.`|  |  | ' \ \ 
    ;   |.'  '--'.     /./__;      :  '  : |--'  
    '---'      `--'---' |   :    .'   ;  |,'     
                        ;   | .'      '--'       
      ~~~~~         Calibre Web       ~~~~~
[INFO] Docker image version: 1.3.0
[INFO] Alpine Linux version: 3.9.0
[WARNING] A group with id 100 exists already [in use by users] and will be modified.
[WARNING] The group users will be renamed to calibre
[INFO] Create user calibre with id 1029
[INFO] Current active timezone is UTC
Sun Feb 17 10:43:25 CET 2019
[INFO] Container timezone is changed to: Europe/Vienna
[INFO] Change the ownership of /calibre-web (including subfolders) to calibre:calibre
[INFO] Current git version is:
git version 2.20.1
[INFO] Checkout the latest Calibre-Web version ...
[INFO] Autoupdate is active, try to pull the latest sources for Calibre-Web ...
[INFO] ... current git status is
fatal: not a git repository (or any parent up to mount point /calibre-web)
Stopping at filesystem boundary (GIT_DISCOVERY_ACROSS_FILESYSTEM not set).
[INFO] ... pulling sources
fatal: not a git repository (or any parent up to mount point /calibre-web)
Stopping at filesystem boundary (GIT_DISCOVERY_ACROSS_FILESYSTEM not set).
[INFO] ... git status after update is
fatal: not a git repository (or any parent up to mount point /calibre-web)
Stopping at filesystem boundary (GIT_DISCOVERY_ACROSS_FILESYSTEM not set).
[INFO] Config directory option is ACTIVATED
> due this the directory /calibre-web/config will be used to store the configuration
[INFO] Change the ownership of /calibre-web/config (including subfolders) to calibre:calibre
[INFO] Checking permissions of the config directory: /calibre-web/config
> Output is: 755 calibre 100 calibre 1029
> Permissions: 755
> Assigned group: calibre
ln: failed to create symbolic link '/calibre-web/app/gdrive.db': File exists
> Assigned group ID: 100
> Assigned owner: calibre
> Assigned owner ID: 1029
> Using permissions for checks: 0755
> The user calibre:1029 is the owner and has write access at /calibre-web/config
[INFO] 'app.db' and 'gdrive.db' will be linked into /calibre-web/config
> 'app.db' link /calibre-web/app/app.db exists already and won't be recreated
> create 'gdrive.db' link /calibre-web/app/gdrive.db assigned to source /calibre-web/config/gdrive.db
> change the ownership of /calibre-web/app/gdrive.db to calibre:calibre
[INFO] Checking permissions of the books directory: /books
> Output is: 772 calibre 100 UNKNOWN 1026
> Permissions: 772
> Assigned group: calibre
> Assigned group ID: 100
> Assigned owner: UNKNOWN
> Assigned owner ID: 1026
> Using permissions for checks: 0772
> Everyone has write access at /books
[INFO] The mapped volume for /books contains a Calibre database file 'metadata.db' which will be used
[INFO] The kindlegen directory exist already and will be used: /calibre-web/kindlegen
[INFO] Kindlegen application exists already in directory: /calibre-web/kindlegen
[INFO] kindlegen (Amazon Kindle Generator) will be linked into /calibre-web/app/vendor
> kindlegen link /calibre-web/app/vendor/kindlegen exists already and won't be recreated
[INFO] Creating directory for temporary directories and files: /tmp
[INFO] Change the ownership of /tmp (including subfolders) to calibre:calibre
[INFO] Launching Calibre-Web ...
[2019-02-17 10:43:30,762] INFO in web: Starting Calibre Web...
[2019-02-17 10:43:31,293] INFO in server: Starting Gevent server

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