LinuxTag 2011

From openZIM
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May 11th - 14th in Berlin



  • blank DVDs
    • ZIM File Archive
    • readers
      • zimreader static build
      • Kiwix Linux / Windows
      • WikiOnBoard
  • posters
What # Who
Switch (8 Port) 1 Manuel
multiple power extender (5 ports) 3 Manuel
extension cord 2 Manuel
halogen spot lamps incl. extension cord 5 Manuel
posters A1 2 Manuel
notebook 1 Manuel
projector 1


General Information

Project Description

  • English (short): openZIM has developed and published a file format for efficient storage of HTML contents, focused on Wikipedia. Due to the free standards several free applications have been created that can read or write ZIM files on various platforms, such as GNU/Linux, Windows, Symbian, Mac OS X etc.
  • English:
    Our mission is to make Wiki content available offline, with a primary focus on the contents of Wikipedia and other Wikimedia projects.
    The core focus of this project is on extracting and encoding of all data from MediaWiki for offline use. With the help of the Wikimedia Foundation we are working together to create a regular process of making ZIM files for the Wikimedia projects.
    When this is successful we would like to add support for other wiki engines so that this can become a ubiquitous file format for offline wiki data. We even believe the file format could be flexible enough to support any kind of web data.
    The general goals we want to achieve are:
    • the file format is the most efficient and works on all platforms, embedded devices and desktop computers
    • the file format is used by all kind of publishers and even outside the Wikimedia community
    • both reader applications and content files are freely interchangeable
    • everyone can implement software for this file format because it is in a open and documented standard
    • there is at least one free implementation which is open source
    • the free implementation can be used easily in other software to make it easy to use the file format without having to implement it
  • German (short): openZIM hat ein Dateiformat zur effizienten Speicherung von HTML-Daten, speziell für Wikipedia, entwickelt und veröffentlicht. Da es sich dabei um einen freien Standard handelt sind verschiedene freie Programme zum Lesen und Schreiben auf verschiedenen Plattformen wie GNU/Linux, Windows, Symbian, Mac OS X, etc. entstanden.
  • German:
    Unser Ziel ist es Wiki-Inhalte ausserhalb des Internets verfügbar zu machen, dabei konzentrieren wir uns vorranging auf die Inhalte der Wikipedia und der anderen Wikimedia-Projekte.
    Der Kern des Projektes besteht darin Daten aus MediaWiki zu exportieren und für die offline-Nutzung aufzubereiten. Mit der Hilfe der Wikimedia Foundation arbeiten wir daran einen regelmässigen Prozess zu schaffen um ZIM-Dateien aus den Wikimedia-Projekte zu exportieren.
    Sobald dies abgeschlossen wurde möchten wir auch andere Wiki-Software unterstützen und damit ZIM zum universellen Datenformat für Offline-Wikidaten zu machen. Wir denken dass das Dateiformat flexibel genug ist um jede Art von Internet-Daten zu speichern.
    Unsere allgemeine Ziele sind:
    • ZIM ist das effizienteste Speicherverfahren und funktioniert auf allen Plattformen, embedded Geräten und normalen Computern
    • das Dateiformat wird von allen Herausgebern benutzt, auch ausserhalb der Wikimedia-Gemeinschaft
    • sowohl die Lesesoftware als auch die Inhalte sind beliebig austauschbar
    • jeder kann seine eigene ZIM-Software schreiben, da es sich um einen offenen, dokumentierten Standard handelt
    • es gibt mindestens eine Implementierung als Freie Software
    • die Freie Implementierung can einfach in andere Programme eingebunden werden um das Dateiformat zu nutzen ohne es selbst implementieren zu müssen

Project Community

Development Process

Developer Community Size

  • Germany: 6
  • Europe: 11
  • Worldwide: 15
  • Developers employed by single company: 2

Supporting Institution

Exhibtion at Linuxtag

Last year's participation

  • Did you participate at last year's LinuxTag? yes
  • Feedback on booth size and equipment:we had a small booth together with tntnet, but with two counters, that was great - other counters (cheaper) would be also great - we can also share one counter if it is a bigger one.
We just missed a place to crash with people while talking - a shared table or sofa would be great (whatever is cheaper)
network was better as in 2009 (switch nearby), but while everyone from the organisers told us NOT IN ANY CASE to shutdown our booths before 18:00 some technicians stole the switch almost an hour earlier....
  • Feedback on booth location: it was a corner-both with two sides open - very good. The neighbours (Yacy, SkoleLinux, SugarLabs, Linux4Africa) were great and fitted perfectly in our scope.


  • Highlights: our documentation has improved much, Kiwix now runs on Mac OS X, ZIM is now the official file format of the Wikimedia Foundation (they now pay a contractor to improve the usability of Kiwix, the Mac OS X port is the first result if that), a zimreader runs on Symbian and Android
  • Merchandising: n/a
  • Partner Project(s): tntnet


  • Wanted size: 9 m²
  • Number of Staff: 5
  • Equipment: posters, beamer, flyers, notebooks, smartphones
  • Advantages for other exhibitors: a few could start using our software because we solve their problems (Linux4Africa, SugarLabs, SkoleLinux)
  • Required special booth equipment: board to put beamer on, a sofa or similar to crash and discuss with visitors

Public Relations

Press Contact

  • Name: Manuel Schneider
  • Address: Scheffelstrasse 1, 79585 Steinen
  • URL:
  • Email:

News during LinuxTag

  • News: n/a


Name arrival time depature time comments
Tommi Mäkitalo 10th afternoon 14th evening by train
Manuel Schneider 6th evening 15th afternoon by train

Accommodation has been booked at Hotel Gates Berlin