Concentrating on the essentials

Made to your specific requirements: features, configuration options and authorisations are customised.

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Describing all of additor´s functions would break the mould. In short: With additor you can easily create, update and enhance all your website´s content – whether it be text, images, media or docu­ments, additor is intuitive and easy to use.

  • Rich text formatting
  • Tables editor
  • Images, image galleries and slideshows
  • Image-Maps
  • Audio and video files support
  • embedding YouTube or Vimeo videos
  • Documents to download
  • Teaser to promote internal or external page links
  • Person, address- and Contact entries
  • Calendar and events
  • News und newsletter module
  • Forms editor
  • Survey tool
  • Auto generated lists (News, Persons, Pages, etc.)
  • Configurable search
  • Built-in links checker
  • iFrame
  • Tag-Cloud
  • SEO Support

Modules can be extended

Like a little more?

Running the whole spectrum, from very big to very small – for teams of all sizes, complex and simple websites, internal to intercontinental ... and modules can be extended at any time.

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Technical Details

Want to know all about the tech? No problem. We´ve compiled more information about the technology behind our content management system below.

Standard Components

  • Based on LAMP
  • PHP7 Support
  • Elasticsearch search engine
  • All the components are available in the modern Linux operating systems
  • Can be installed on Microsoft Windows and Mac OS X operationg systems

Persmissions and Workflow

  • Read and write permissins
  • Decentralized, simple assignment of permissions
  • Optional: Authentication via LDAP or other methods


  • Hierarchical URLs; Short URLs
  • Multiple domains with different designs configurable in one installation
  • Subsites with optional deviant design
  • Editable page menus


  • HTML parts can be integrated from other HTML pages
  • Possibility to install custom PHP pages and applications
  • HTML5 snippets, animations, mini-applications directly integrable
  • CMS framework for more complex customization
  • Flexible output formats
  • Any HTML, XML, text page or JSON data can be generated

Another functions

  • Forms can be evaluated via own PHP scripts
  • Centralized tag management
  • Free and convenient editable meta tags
  • Keyboard and other shortcuts for power users


Intuitive and clear design

Clear structures, easy to use and a straightforward design. additor can be used by inexperienced CMS and non-technical users and is accessible from any location.

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  • Intuitive
  • Simpler than any CMS you know
  • Minimal training expense
  • Content management using drag and drop


  • Web content management and content management system
  • Integrated intranet
  • Integrated media center
  • Sophisticated user management


  • Customise individual pages
  • Manage page structure
  • Edit images
  • Create your own templates


  • For responsive websites
  • For classic websites
  • For one-pagers
  • Flexible versions


  • Corporate design can be integrated
  • Customisable to your needs
  • Integrate your own PHP pages and applications
  • Multilingual


  • Manage with web browser
  • No plugins required
  • Also works on mobile devices (> 7“)
  • Manage content on the go


Our content management system has proved itself over the course of the last 16 years as a productive and flexible CMS. Our customers include:


  • KAEFER Isoliertechnik (ca. 40 Websites)
  • Max Planck Institut for Marine Microbiology
  • Hochschule Augsburg - University of Applied Science
  • Marum - Zentrum für Marine Umweltwissenschaften
  • Lighthouse Foundation - Stiftung für die Meere und Ozeane (Projekt in Umsetzung)
  • IG BAU (ca. 35 Websites)
  • Bremer Energie-Konsens GmbH (12 Websites)
  • IPN - Leibniz-Institut für die Pädagogik der Naturwissenschaften
  • Jippie Media, Jeversen
  • Hochschule für Gestaltung Schwäbisch Gmünd
  • Milchkontrollverbandes Elbe-Weser
  • Landeskontrollverband für Milchwirtschaft Weser-Ems
  • Norddeutsches Zentrum für Nachhaltiges Bauen, Verden
  • Reimer logistics, Bremen
  • Haus der Wissenschaft Bremen
  • Comes Unternehmensberatung, Hamburg
  • Bundesverband Museumspädagogik, Dortmund
  • Verbundzentrale des Gemeinsamen Bibliotheksverbundes, Göttingen
  • Diakonische Behindertenhilfe Lilienthal (Projekt in Umsetzung)

Multimedia guides / exhibition media

  • DASA Arbeitswelt Ausstellung, Dortmund
  • Haffmuseum Ueckermünde
  • Haus der Geschichte Baden Württemberg, Stuttgart
  • Hessisches Landesmuseum Kassel
  • Historisches Museum Frankfurt
  • Kunsthalle Bremen
  • Kunsthaus Bregenz
  • Landesmuseum Hannover
  • Museum der Bildenden Künste Leipzig (Projekt in Umsetzung)
  • Museum Lüneburg
  • Nationalparkzentrum Eifel
  • NS Dokumentationszentrum Vogelsang
  • Sonnenplatz Großschönau / Österreich
  • Städtisches Museum Herford
  • Stadtmuseum Münster
  • Vorarlberg museum, Bregenz / Österreich (Projekt in Umsetzung)
  • Windstärke10, Cuxhaven